v3.23.1
INCOME TAXES - Reconciliation between the provision for income taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Reconciliation between the provision for income taxes computed by applying the PRC EIT rate of 25% to income before income taxes and the actual provision of income taxes      
Net loss before provision for income taxes $ (12,294) $ (17,503) $ (3,787)
PRC statutory tax rate 25.00% 25.00% 25.00%
Income tax at statutory tax rate $ (3,074) $ (4,376) $ (947)
Expenses not deductible for tax purpose      
Entertainment expenses exceeded the tax limit 28 42 48
Tax effect of impairment loss on property and equipment and intangible assets 668 0 0
Tax effect of unrealized net operating loss 7,780 5,575 4,481
Tax effect of other permanent differences 0 0 19
Non-taxable gain from subsidiaries disposal 0 0 (14,323)
Effect of income tax benefit due to reverse of UTP 0 0 (11,065)
Changes in valuation allowance (4,326) (763) 10,282
Effect of preferential tax rates granted to PRC entities 0 121 1,599
Effect of income tax rate change (1,026) (391) (396)
Effect of income tax rate difference in other jurisdictions (33) 76 67
Income tax (benefits) expenses $ 17 $ 284 $ (10,235)
Effective tax rates (0.10%) (1.60%) 270.30%