XML 63 R43.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

LEASES (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
LEASES |
Schedule of components of lease expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years ended December 31,
​ |  | 2022 |  | 2023
​ | ​ | ​ | ​ | ​ | ​ | ​
Operating lease expense | ​ | $ | 4,314 | ​ | $ | 2,348
Schedule of supplemental cash flow information | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years ended December 31,
​ |  | 2022 |  | 2023
​ | ​ | ​ | ​ | ​ | ​ | ​
Cash paid for amounts included in the measurement of lease liabilities: | ​ | ​ | ​ | ​ | ​ |
Operating cash flows from operating leases | ​ | $ | 2,363 | ​ | $ | 1,451
Schedule of lease terms and discount rates | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years ended December 31, |
​ |  | 2022 |  | 2023 | ​
Weighted-average Remaining Lease Term | ​ | ​ | ​ |  | ​
Operating leases |  | 3.16 Years | ​ | 2.20 Years | ​
Weighted-average Discount Rate |  | — | ​ | — | ​
Operating leases |  | 4.25 | % | 4.25 | %
Schedule of maturities of lease liabilities | As of December 31, 2023, maturities of lease liabilities were as follows: ​
​ | ​ | ​ | ​
​ | ​ |  | Amount
​ | ​ | ​ | ​
​ | ​ |  |
2024 | ​ | $ | 4,176
2025 | ​ |  | 2,415
2026 | ​ | ​ | 465
2027 | ​ | ​ | 31
2028 | ​ | ​ | 8
Thereafter | ​ |  | —
Total lease payments | ​ |  | 7,095
Less: interest | ​ |  | (260)
Total | ​ |  | 6,835
Less: current portion | ​ |  | (2,486)
Non-current portion | ​ | $ | 4,349

X
- Definition Tabular disclosure of lease term and discount rates. + References No definition available. + Details
Name: | ambo_ScheduleOfLeaseTermsAndDiscountRatesTableTextBlock
Namespace Prefix: | ambo_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of schedule of supplemental disclosure of operating lease. + References No definition available. + Details
Name: | ambo_ScheduleOfSupplementalCashFlowInformationTableTextBlock
Namespace Prefix: | ambo_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-4 + Details
Name: | us-gaap_LeaseCostTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-6 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration