ActiveDisclosure Fact Consistency Report
Created 11/04/21 19:29:47 from Project MNTX_Master.docx for Period Ending 9/30/2021
The Fact Consistency Report lists all facts that have the same value and context, but are tagged with different elements. Fact values of 0 or 1 are not compared. The intention is to identify inconsistently tagged facts.
 
Element Name
Disclosure Title
Element Label
Instance Value
Value
Period Ending
Period Type
Data Type
Balance
Label Role
Axis / Member
us-gaap:CommonStockSharesIssued
Statement - Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited)
Common Stock, shares issued 
19933130 
19,933,130 
9/30/2021 - Instant 
instant 
sharesItemType 
none 
 
 
us-gaap:CommonStockSharesOutstanding
Statement - Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited)
Common Stock, shares outstanding 
19933130 
19,933,130 
9/30/2021 - Instant 
instant 
sharesItemType 
none 
 
 
us-gaap:CommonStockSharesIssued
Statement - Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited)
Common Stock, shares issued 
19821090 
19,821,090 
12/31/2020 - Instant 
instant 
sharesItemType 
none 
 
 
us-gaap:CommonStockSharesOutstanding
Statement - Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited)
Common Stock, shares outstanding 
19821090 
19,821,090 
12/31/2020 - Instant 
instant 
sharesItemType 
none 
 
 
us-gaap:Assets
Statement - Condensed Consolidated Balance Sheets (Unaudited)
Total assets 
178798000 
$178,798 
9/30/2021 - Instant 
instant 
monetaryItemType 
debit 
Total Label 
 
us-gaap:LiabilitiesAndStockholdersEquity
Statement - Condensed Consolidated Balance Sheets (Unaudited)
Total liabilities and equity 
178798000 
$178,798 
9/30/2021 - Instant 
instant 
monetaryItemType 
credit 
Total Label 
 
us-gaap:Assets
Statement - Condensed Consolidated Balance Sheets (Unaudited)
Total assets 
173595000 
$173,595 
12/31/2020 - Instant 
instant 
monetaryItemType 
debit 
Total Label 
 
us-gaap:LiabilitiesAndStockholdersEquity
Statement - Condensed Consolidated Balance Sheets (Unaudited)
Total liabilities and equity 
173595000 
$173,595 
12/31/2020 - Instant 
instant 
monetaryItemType 
credit 
Total Label 
 
us-gaap:IncomeLossFromContinuingOperations
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Net income (loss) from continuing operations 
-1101000 
(1,101) 
9/30/2021 - 3 Months 
duration 
monetaryItemType 
credit 
Total Label 
 
us-gaap:NetIncomeLoss
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Net income (loss) 
-1101000 
(1,101) 
9/30/2021 - 3 Months 
duration 
monetaryItemType 
credit 
Total Label 
 
us-gaap:IncomeLossFromContinuingOperations
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Net income (loss) from continuing operations 
3492000 
3,492 
9/30/2021 - 9 Months 
duration 
monetaryItemType 
credit 
Total Label 
 
us-gaap:NetIncomeLoss
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Net income (loss) 
3492000 
3,492 
9/30/2021 - 9 Months 
duration 
monetaryItemType 
credit 
Total Label 
 
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Income (loss) from continuing operations 
-0.06 
$(0.06) 
9/30/2021 - 3 Months 
duration 
perShareItemType 
none 
Verbose Label 
 
us-gaap:EarningsPerShareBasic
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Net income (loss) 
-0.06 
$(0.06) 
9/30/2021 - 3 Months 
duration 
perShareItemType 
none 
Total Label 
 
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Income (loss) from continuing operations 
0.18 
$0.18 
9/30/2021 - 9 Months 
duration 
perShareItemType 
none 
Verbose Label 
 
us-gaap:EarningsPerShareBasic
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Net income (loss) 
0.18 
$0.18 
9/30/2021 - 9 Months 
duration 
perShareItemType 
none 
Total Label 
 
us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Income (loss) from continuing operations 
-0.06 
$(0.06) 
9/30/2021 - 3 Months 
duration 
perShareItemType 
none 
Verbose Label 
 
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Income (loss) from continuing operations 
-0.07 
$(0.07) 
9/30/2020 - 3 Months 
duration 
perShareItemType 
none 
Verbose Label 
 
us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Income (loss) from continuing operations 
-0.07 
$(0.07) 
9/30/2020 - 3 Months 
duration 
perShareItemType 
none 
Verbose Label 
 
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Income (loss) from continuing operations 
-0.55 
$(0.55) 
9/30/2020 - 9 Months 
duration 
perShareItemType 
none 
Verbose Label 
 
us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Income (loss) from continuing operations 
-0.55 
$(0.55) 
9/30/2020 - 9 Months 
duration 
perShareItemType 
none 
Verbose Label 
 
us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Loss from discontinued operations 
-0.01 
$(0.01) 
9/30/2020 - 3 Months 
duration 
perShareItemType 
none 
 
 
us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Loss from discontinued operations 
-0.01 
$(0.01) 
9/30/2020 - 3 Months 
duration 
perShareItemType 
none 
 
 
us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Loss from discontinued operations 
-0.04 
$(0.04) 
9/30/2020 - 9 Months 
duration 
perShareItemType 
none 
 
 
us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Loss from discontinued operations 
-0.04 
$(0.04) 
9/30/2020 - 9 Months 
duration 
perShareItemType 
none 
 
 
us-gaap:EarningsPerShareDiluted
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Net income (loss) 
-0.06 
$(0.06) 
9/30/2021 - 3 Months 
duration 
perShareItemType 
none 
Total Label 
 
us-gaap:EarningsPerShareBasic
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Net income (loss) 
-0.08 
$(0.08) 
9/30/2020 - 3 Months 
duration 
perShareItemType 
none 
Total Label 
 
us-gaap:EarningsPerShareDiluted
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Net income (loss) 
-0.08 
$(0.08) 
9/30/2020 - 3 Months 
duration 
perShareItemType 
none 
Total Label 
 
us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Income (loss) from continuing operations 
0.17 
$0.17 
9/30/2021 - 9 Months 
duration 
perShareItemType 
none 
Verbose Label 
 
us-gaap:EarningsPerShareDiluted
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Net income (loss) 
0.17 
$0.17 
9/30/2021 - 9 Months 
duration 
perShareItemType 
none 
Total Label 
 
us-gaap:EarningsPerShareBasic
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Net income (loss) 
-0.59 
$(0.59) 
9/30/2020 - 9 Months 
duration 
perShareItemType 
none 
Total Label 
 
us-gaap:EarningsPerShareDiluted
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Net income (loss) 
-0.59 
$(0.59) 
9/30/2020 - 9 Months 
duration 
perShareItemType 
none 
Total Label 
 
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Basic 
19917276 
19,917,276 
9/30/2021 - 3 Months 
duration 
sharesItemType 
none 
 
 
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Diluted 
19917276 
19,917,276 
9/30/2021 - 3 Months 
duration 
sharesItemType 
none 
 
 
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Basic 
19778225 
19,778,225 
9/30/2020 - 3 Months 
duration 
sharesItemType 
none 
 
 
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Diluted 
19778225 
19,778,225 
9/30/2020 - 3 Months 
duration 
sharesItemType 
none 
 
 
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Basic 
19758241 
19,758,241 
9/30/2020 - 9 Months 
duration 
sharesItemType 
none 
 
 
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Diluted 
19758241 
19,758,241 
9/30/2020 - 9 Months 
duration 
sharesItemType 
none 
 
 
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
Statement - Condensed Consolidated Balance Sheets (Unaudited)
Total equity 
68909000 
68,909 
12/31/2020 - Instant 
instant 
monetaryItemType 
credit 
Total Label 
 
us-gaap:StockholdersEquity
Statement - Condensed Consolidated Statement of Shareholders' Equity (Unaudited)
Balance at beginning of the year 
68909000 
$68,909 
12/31/2020 - Instant 
instant 
monetaryItemType 
credit 
Period Start Label 
 
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
Statement - Condensed Consolidated Balance Sheets (Unaudited)
Total equity 
71407000 
71,407 
9/30/2021 - Instant 
instant 
monetaryItemType 
credit 
Total Label 
 
us-gaap:StockholdersEquity
Statement - Condensed Consolidated Statement of Shareholders' Equity (Unaudited)
Balance end of year 
71407000 
$71,407 
9/30/2021 - Instant 
instant 
monetaryItemType 
credit 
Period End Label 
 
us-gaap:OtherComprehensiveIncomeLossNetOfTax
Statement - Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited)
Total other comprehensive income (loss) 
1053000 
1,053 
9/30/2020 - 3 Months 
duration 
monetaryItemType 
credit 
Total Label 
 
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
Statement - Condensed Consolidated Statement of Shareholders' Equity (Unaudited)
Gain (Loss) on foreign currency translation 
1053000 
1,053 
9/30/2020 - 3 Months 
duration 
monetaryItemType 
credit 
Verbose Label 
 
us-gaap:ProfitLoss
Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)
Net income (loss) 
3492000 
$3,492 
9/30/2021 - 9 Months 
duration 
monetaryItemType 
credit 
 
 
us-gaap:NetIncomeLoss
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Net income (loss) 
-11724000 
(11,724) 
9/30/2020 - 9 Months 
duration 
monetaryItemType 
credit 
Total Label 
 
us-gaap:ProfitLoss
Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)
Net income (loss) 
-11724000 
$(11,724) 
9/30/2020 - 9 Months 
duration 
monetaryItemType 
credit 
 
 
us-gaap:InvestmentIncomeInterest
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Interest income 
7000 
9/30/2021 - 9 Months 
duration 
monetaryItemType 
credit 
 
 
mntx:InterestReceived
Disclosure - Nature of Operations and Basis of Presentation - Schedule of Supplemental Cash Flow Transactions (Detail)
Interest received in cash 
7000 
$7 
9/30/2021 - 9 Months 
duration 
monetaryItemType 
debit 
 
 
us-gaap:InvestmentIncomeInterest
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Interest income 
80000 
80 
9/30/2020 - 9 Months 
duration 
monetaryItemType 
credit 
 
 
mntx:InterestReceived
Disclosure - Nature of Operations and Basis of Presentation - Schedule of Supplemental Cash Flow Transactions (Detail)
Interest received in cash 
80000 
$80 
9/30/2020 - 9 Months 
duration 
monetaryItemType 
debit 
 
 
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
Disclosure - Goodwill and Intangible Assets - Schedule of Estimated Amortization Expense (Detail)
2022 
2267000 
$2,267 
9/30/2021 - Instant 
instant 
monetaryItemType 
debit 
 
 
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
Disclosure - Goodwill and Intangible Assets - Schedule of Estimated Amortization Expense (Detail)
2023 
2267000 
2,267 
9/30/2021 - Instant 
instant 
monetaryItemType 
debit 
 
 
us-gaap:IndefiniteLivedTradeNames
Disclosure - Goodwill and Intangible Assets - Schedule of Intangible Assets and Accumulated Amortization by Category (Detail)
Indefinite lived trade names 
2524000 
2,524 
9/30/2021 - Instant 
instant 
monetaryItemType 
debit 
 
 
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill
Disclosure - Goodwill and Intangible Assets - Schedule of Estimated Amortization Expense (Detail)
Intangibles with indefinite lives not amortized 
2524000 
2,524 
9/30/2021 - Instant 
instant 
monetaryItemType 
debit 
 
 
us-gaap:StandardProductWarrantyAccrual
Disclosure - Significant Accounting Policies and New Accounting Pronouncements - Additional Information (Detail)
Accrued warranties 
1421000 
1,421 
9/30/2021 - Instant 
instant 
monetaryItemType 
credit 
 
 
us-gaap:ProductWarrantyAccrualClassifiedCurrent
Disclosure - Accrued Expenses - Schedule of Accrued Expenses (Detail)
Accrued warranty 
1421000 
1,421 
9/30/2021 - Instant 
instant 
monetaryItemType 
credit 
 
 
us-gaap:StandardProductWarrantyAccrual
Disclosure - Significant Accounting Policies and New Accounting Pronouncements - Additional Information (Detail)
Accrued warranties 
1292000 
1,292 
12/31/2020 - Instant 
instant 
monetaryItemType 
credit 
 
 
us-gaap:ProductWarrantyAccrualClassifiedCurrent
Disclosure - Accrued Expenses - Schedule of Accrued Expenses (Detail)
Accrued warranty 
1292000 
1,292 
12/31/2020 - Instant 
instant 
monetaryItemType 
credit 
 
 
mntx:EligibleInventoryCollateralSubLimitMaximumRate
Disclosure - Credit Facilities and Debt - Additional Information - U.S. Credit Facilities (Detail)
Maximum percentage of assets eligible for collateral, eligible inventory 
0.50 
50 
9/30/2021 - 9 Months 
duration 
percentItemType 
none 
 
us-gaap:LineOfCreditFacilityAxis=>mntx:CIBCMember;us-gaap:DebtInstrumentAxis=>mntx:UnitedStatesCreditFacilitiesMember; 
mntx:EligibleMexicoReceivablesCollateralSubLimitMaximumRate
Disclosure - Credit Facilities and Debt - Additional Information - U.S. Credit Facilities (Detail)
Maximum percentage of assets eligible for collateral, eligible mexico receivables 
0.50 
50 
9/30/2021 - 9 Months 
duration 
percentItemType 
none 
 
us-gaap:LineOfCreditFacilityAxis=>mntx:CIBCMember;us-gaap:DebtInstrumentAxis=>mntx:UnitedStatesCreditFacilitiesMember; 
us-gaap:DebtInstrumentInterestRateStatedPercentage
Disclosure - Credit Facilities and Debt - Additional Information - PM Group Term Loans (Detail)
Debt Instrument Interest Rate 
0.035 
3.5 
9/30/2021 - Instant 
instant 
percentItemType 
none 
 
us-gaap:LongtermDebtTypeAxis=>us-gaap:UnsecuredDebtMember;dei:LegalEntityAxis=>mntx:PMGroupMember; 
us-gaap:DebtInstrumentInterestRateEffectivePercentage
Disclosure - Credit Facilities and Debt - Additional Information - PM Group Term Loans (Detail)
Debt instrument, interest rate, effective percentage 
0.035 
3.5 
9/30/2021 - Instant 
instant 
percentItemType 
none 
 
us-gaap:LongtermDebtTypeAxis=>us-gaap:UnsecuredDebtMember;dei:LegalEntityAxis=>mntx:PMGroupMember; 
us-gaap:DebtInstrumentInterestRateStatedPercentage
Disclosure - Credit Facilities and Debt - Additional Information - PM Group Term Loans (Detail)
Debt Instrument Interest Rate 
0.035 
3.5 
12/31/2020 - Instant 
instant 
percentItemType 
none 
 
us-gaap:LongtermDebtTypeAxis=>us-gaap:UnsecuredDebtMember;dei:LegalEntityAxis=>mntx:PMGroupMember; 
us-gaap:DebtInstrumentInterestRateEffectivePercentage
Disclosure - Credit Facilities and Debt - Additional Information - PM Group Term Loans (Detail)
Debt instrument, interest rate, effective percentage 
0.035 
3.5 
12/31/2020 - Instant 
instant 
percentItemType 
none 
 
us-gaap:LongtermDebtTypeAxis=>us-gaap:UnsecuredDebtMember;dei:LegalEntityAxis=>mntx:PMGroupMember; 
us-gaap:FinanceLeaseInterestExpense
Disclosure - Leases - Schedule of Lease Cost (Detail)
Interest on lease liabilities 
136000 
136 
9/30/2021 - 3 Months 
duration 
monetaryItemType 
debit 
 
 
us-gaap:FinanceLeaseInterestPaymentOnLiability
Disclosure - Leases - Summary of Other Information Related to Leases (Detail)
Operating cash flows from finance leases 
136000 
$136 
9/30/2021 - 3 Months 
duration 
monetaryItemType 
credit 
 
 
us-gaap:FinanceLeaseRightOfUseAssetAmortization
Disclosure - Leases - Schedule of Lease Cost (Detail)
Amortization of leased assets 
79000 
79 
9/30/2020 - 3 Months 
duration 
monetaryItemType 
debit 
 
 
us-gaap:FinanceLeaseInterestPaymentOnLiability
Disclosure - Leases - Summary of Other Information Related to Leases (Detail)
Operating cash flows from finance leases 
79000 
$79 
9/30/2020 - 3 Months 
duration 
monetaryItemType 
credit 
 
 
us-gaap:FinanceLeaseInterestExpense
Disclosure - Leases - Schedule of Lease Cost (Detail)
Interest on lease liabilities 
416000 
416 
9/30/2021 - 9 Months 
duration 
monetaryItemType 
debit 
 
 
us-gaap:FinanceLeaseInterestPaymentOnLiability
Disclosure - Leases - Summary of Other Information Related to Leases (Detail)
Operating cash flows from finance leases 
416000 
$416 
9/30/2021 - 9 Months 
duration 
monetaryItemType 
credit 
 
 
us-gaap:FinanceLeaseRightOfUseAssetAmortization
Disclosure - Leases - Schedule of Lease Cost (Detail)
Amortization of leased assets 
306000 
306 
9/30/2020 - 9 Months 
duration 
monetaryItemType 
debit 
 
 
us-gaap:FinanceLeaseInterestPaymentOnLiability
Disclosure - Leases - Summary of Other Information Related to Leases (Detail)
Operating cash flows from finance leases 
306000 
$306 
9/30/2020 - 9 Months 
duration 
monetaryItemType 
credit 
 
 
us-gaap:FinanceLeaseInterestExpense
Disclosure - Leases - Schedule of Lease Cost (Detail)
Interest on lease liabilities 
145000 
145 
9/30/2020 - 3 Months 
duration 
monetaryItemType 
debit 
 
 
us-gaap:FinanceLeasePrincipalPayments
Disclosure - Leases - Summary of Other Information Related to Leases (Detail)
Financing cash flows from finance leases 
145000 
$145 
9/30/2020 - 3 Months 
duration 
monetaryItemType 
credit 
 
 
mntx:RepaymentsOfCapitalLeaseObligations
Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)
Payments on capital lease obligations 
254000 
(254) 
9/30/2021 - 9 Months 
duration 
monetaryItemType 
credit 
Negated Label 
 
us-gaap:FinanceLeasePrincipalPayments
Disclosure - Leases - Summary of Other Information Related to Leases (Detail)
Financing cash flows from finance leases 
254000 
$254 
9/30/2021 - 9 Months 
duration 
monetaryItemType 
credit 
 
 
us-gaap:FinanceLeaseInterestExpense
Disclosure - Leases - Schedule of Lease Cost (Detail)
Interest on lease liabilities 
444000 
444 
9/30/2020 - 9 Months 
duration 
monetaryItemType 
debit 
 
 
us-gaap:FinanceLeasePrincipalPayments
Disclosure - Leases - Summary of Other Information Related to Leases (Detail)
Financing cash flows from finance leases 
444000 
$444 
9/30/2020 - 9 Months 
duration 
monetaryItemType 
credit 
 
 
us-gaap:OperatingLeaseRightOfUseAsset
Statement - Condensed Consolidated Balance Sheets (Unaudited)
Operating lease assets 
3484000 
3,484 
9/30/2021 - Instant 
instant 
monetaryItemType 
debit 
 
 
us-gaap:OperatingLeaseLiability
Disclosure - Leases - Schedule of Future Principal Minimum Lease Payments (Detail)
Total liabilities 
3484000 
$3,484 
9/30/2021 - Instant 
instant 
monetaryItemType 
credit 
Total Label 
 
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
Disclosure - Leases - Schedule of Future Principal Minimum Lease Payments (Detail)
2023 
925000 
925 
9/30/2021 - Instant 
instant 
monetaryItemType 
credit 
 
 
us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo
Disclosure - Leases - Schedule of Future Principal Minimum Lease Payments (Detail)
2023 
925000 
925 
9/30/2021 - Instant 
instant 
monetaryItemType 
credit 
 
 
us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
Disclosure - Net Earnings (Loss) per Common Share - Basic and Diluted Net Earnings Per Share (Detail)
Loss from discontinued operations 
-0.01 
$(0.01) 
9/30/2020 - 3 Months 
duration 
perShareItemType 
none 
 
 
us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
Disclosure - Net Earnings (Loss) per Common Share - Basic and Diluted Net Earnings Per Share (Detail)
Loss from discontinued operations 
-0.04 
$(0.04) 
9/30/2020 - 9 Months 
duration 
perShareItemType 
none 
 
 
us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
Disclosure - Net Earnings (Loss) per Common Share - Basic and Diluted Net Earnings Per Share (Detail)
Loss from discontinued operations 
-0.01 
$(0.01) 
9/30/2020 - 3 Months 
duration 
perShareItemType 
none 
 
 
us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
Disclosure - Net Earnings (Loss) per Common Share - Basic and Diluted Net Earnings Per Share (Detail)
Loss from discontinued operations 
-0.04 
$(0.04) 
9/30/2020 - 9 Months 
duration 
perShareItemType 
none 
 
 
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted
Disclosure - Net Earnings (Loss) per Common Share - Basic and Diluted Net Earnings Per Share (Detail)
Basic and Dilutive 
19917276 
19,917,276 
9/30/2021 - 3 Months 
duration 
sharesItemType 
none 
Total Label 
 
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted
Disclosure - Net Earnings (Loss) per Common Share - Basic and Diluted Net Earnings Per Share (Detail)
Basic and Dilutive 
19778225 
19,778,225 
9/30/2020 - 3 Months 
duration 
sharesItemType 
none 
Total Label 
 
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Diluted 
19970681 
19,970,681 
9/30/2021 - 9 Months 
duration 
sharesItemType 
none 
 
 
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted
Disclosure - Net Earnings (Loss) per Common Share - Basic and Diluted Net Earnings Per Share (Detail)
Basic and Dilutive 
19970681 
19,970,681 
9/30/2021 - 9 Months 
duration 
sharesItemType 
none 
Total Label 
 
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted
Disclosure - Net Earnings (Loss) per Common Share - Basic and Diluted Net Earnings Per Share (Detail)
Basic and Dilutive 
19758241 
19,758,241 
9/30/2020 - 9 Months 
duration 
sharesItemType 
none 
Total Label 
 
us-gaap:StockRepurchasedDuringPeriodShares
Disclosure - Equity - Summary of Common Stock Repurchases (Detail)
Shares Purchased 
6183 
6,183 
9/30/2021 - 9 Months 
duration 
sharesItemType 
none 
 
 
us-gaap:StockRepurchasedAndRetiredDuringPeriodShares
Disclosure - Equity - Restricted Stock Units Outstanding (Detail)
Vested-issued and repurchased for income tax withholding 
6183 
(6,183) 
9/30/2021 - 9 Months 
duration 
sharesItemType 
none 
Negated Terse Label 
 
us-gaap:AccountsPayableRelatedPartiesCurrent
Statement - Condensed Consolidated Balance Sheets (Unaudited)
Related party payables, net 
124000 
124 
9/30/2021 - Instant 
instant 
monetaryItemType 
credit 
 
 
mntx:AccountsPayableReceivableRelatedPartiesNet
Disclosure - Transactions between the Company and Related Parties - Schedule of Accounts Receivable and Accounts Payable with Related Parties (Detail)
Net Related Party Accounts Payable 
124000 
$124 
9/30/2021 - Instant 
instant 
monetaryItemType 
credit 
Total Label 
 
us-gaap:AccountsPayableRelatedPartiesCurrent
Statement - Condensed Consolidated Balance Sheets (Unaudited)
Related party payables, net 
52000 
52 
12/31/2020 - Instant 
instant 
monetaryItemType 
credit 
 
 
mntx:AccountsPayableReceivableRelatedPartiesNet
Disclosure - Transactions between the Company and Related Parties - Schedule of Accounts Receivable and Accounts Payable with Related Parties (Detail)
Net Related Party Accounts Payable 
52000 
$52 
12/31/2020 - Instant 
instant 
monetaryItemType 
credit 
Total Label 
 
us-gaap:ProceedsFromDivestitureOfBusinesses
Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)
Proceeds from the sale of discontinued operations 
1610000 
1,610 
9/30/2020 - 9 Months 
duration 
monetaryItemType 
debit 
 
 
us-gaap:CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations
Disclosure - Discontinued Operations - Additional Information (Detail)
Cash flows used in Investing activities 
1610000 
1,610 
9/30/2020 - 9 Months 
duration 
monetaryItemType 
debit 
 
 
us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Loss from operations of discontinued operations 
-120000 
(120) 
9/30/2020 - 3 Months 
duration 
monetaryItemType 
credit 
 
 
us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax
Disclosure - Discontinued Operations - Summary of Loss from Discontinued Operations (Detail)
Net loss of discontinued operations before income tax 
-120000 
(120) 
9/30/2020 - 3 Months 
duration 
monetaryItemType 
credit 
Total Label 
 
us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Loss from operations of discontinued operations 
-831000 
(831) 
9/30/2020 - 9 Months 
duration 
monetaryItemType 
credit 
 
 
us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax
Disclosure - Discontinued Operations - Summary of Loss from Discontinued Operations (Detail)
Net loss of discontinued operations before income tax 
-831000 
(831) 
9/30/2020 - 9 Months 
duration 
monetaryItemType 
credit 
Total Label 
 
us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Loss from discontinued operations 
-124000 
(124) 
9/30/2020 - 3 Months 
duration 
monetaryItemType 
credit 
Total Label 
 
us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTax
Disclosure - Discontinued Operations - Summary of Loss from Discontinued Operations (Detail)
Net loss on discontinued operations 
-124000 
$(124) 
9/30/2020 - 3 Months 
duration 
monetaryItemType 
credit 
Total Label 
 
us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
Statement - Condensed Consolidated Statements of Operations (Unaudited)
Loss from discontinued operations 
-832000 
(832) 
9/30/2020 - 9 Months 
duration 
monetaryItemType 
credit 
Total Label 
 
us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTax
Disclosure - Discontinued Operations - Summary of Loss from Discontinued Operations (Detail)
Net loss on discontinued operations 
-832000 
$(832) 
9/30/2020 - 9 Months 
duration 
monetaryItemType 
credit 
Total Label