Represents Credit agreement leverage ratio.

No definition available.

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- Definition

Represents the minimum interest expense coverage ratio as per the credit agreement.

+ References

No definition available.

+ Details

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- Definition

Represents Credit agreement ,Percentage of increase in consolidated leverage ratio.

+ References

No definition available.

+ Details

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- Definition

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (a)
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	na
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Average amount borrowed under the credit facility during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityAverageOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The effective interest rate at the end of the reporting period.

+ References

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

+ Details

Name:	us-gaap_LongTermDebtNoncurrent
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 10
-Section 45
-Paragraph 15
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-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

+ Details

Name:	us-gaap_UnamortizedDebtIssuanceExpense
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Data Type:	xbrli:monetaryItemType
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Balance Type:
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- Details

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- Details

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- Details

Name:	us-gaap_LongtermDebtTypeAxis=amot_SecondAmendmentMember
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DEBT OBLIGATIONS (Details) ¥ in Thousands, $ in Thousands			12 Months Ended
DEBT OBLIGATIONS (Details) ¥ in Thousands, $ in Thousands	Dec. 31, 2017 USD ($)	Oct. 28, 2016 USD ($)	Dec. 31, 2018 CNY (¥)	Dec. 31, 2018 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2018 USD ($)	Dec. 06, 2018 USD ($)
Debt Obligations
Current borrowings	$ 461
Long-term debt	52,694					$ 122,516
Unamortized debt issuance costs	(572)					(494)
Additional borrowing capacity					$ 1,052
Deferred financing costs				$ 72	$ 745
Revolving Credit Facility
Debt Obligations
Long-term debt	$ 53,266					$ 123,010
Effective rate (as a percent)			3.47%			3.47%
Maximum borrowing capacity		$ 125,000
Commitment fees on unused portion of the Revolving credit facility ( as a percent)			0.125%	0.125%
Minimum interest expense coverage ratio			3.0			3.0
Increase in consolidated leverage ratio			0.5			0.5
Revolving Credit Facility \| Minimum
Debt Obligations
Commitment fees on unused portion of the Revolving credit facility ( as a percent)			0.10%	0.10%
Revolving Credit Facility \| Maximum
Debt Obligations
Commitment fees on unused portion of the Revolving credit facility ( as a percent)			0.25%	0.25%
Revolving Credit Facility \| LIBOR
Debt Obligations
Applicable margin (as a percent)			1.25%	1.25%
Revolving Credit Facility \| LIBOR \| Minimum
Debt Obligations
Applicable margin (as a percent)		1.00%
Revolving Credit Facility \| LIBOR \| Maximum
Debt Obligations
Applicable margin (as a percent)		2.25%
Revolving Credit Facility \| Prime Rate
Debt Obligations
Applicable margin (as a percent)	0.50%
Revolving Credit Facility \| Prime Rate \| Minimum
Debt Obligations
Applicable margin (as a percent)		0.00%
Revolving Credit Facility \| Prime Rate \| Maximum
Debt Obligations
Applicable margin (as a percent)		1.25%
Second Amendment
Debt Obligations
Maximum borrowing capacity							$ 175,000
Additional borrowing capacity							$ 50,000
Deferred financing costs				$ 72
Term Loan
Debt Obligations
Maximum borrowing capacity		$ 50,000
Debt instrument term		5 years
Senior Credit Facilities
Debt Obligations
Debt instrument term			5 years	5 years
Deferred financing costs				$ 745
Deferred financing costs net of accumulated amortization						$ 494
China Credit Facility
Debt Obligations
Current borrowings	$ 461
Interest rate (as a percent)			5.30%			5.30%
Maximum borrowing capacity			¥ 10,000			$ 1,454
Average outstanding borrowings			2,250	$ 345
Available borrowing capacity			¥ 10,000			$ 1,454
Quarter Ending Through December 31 2019
Debt Obligations
Leverage ratio			3.5			3.5
Quarter Ending Through June 30 2020
Debt Obligations
Leverage ratio			3.25			3.25
Quarter Thereafter June 30 2020
Debt Obligations
Leverage ratio			3.0			3.0