Unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
REVENUES:
Total revenues	$ 76,699	$ 72,149
COSTS OF REVENUES:
Total costs of revenues	56,707	54,246
Gross profit	19,992	17,903
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES	19,369	18,346
Income (loss) from operations	623	(443)
INTEREST EXPENSE, net	415	512
Income (loss) before income taxes	208	(955)
INCOME TAX EXPENSE, net	439	209
Net loss	$ (231)	$ (1,164)
NET LOSS PER SHARE:
Basic (in USD per share)	$ (0.01)	$ (0.06)
Diluted (in USD per share)	$ (0.01)	$ (0.06)
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING:
Basic (in shares)	19,679	19,486
Diluted (in shares)	19,679	19,486
COMPREHENSIVE LOSS:
Net loss	$ (231)	$ (1,164)
Foreign currency translation adjustment	(944)	31
TOTAL COMPREHENSIVE LOSS	(1,175)	(1,133)
Service fee revenue
REVENUES:
Total revenues	54,298	51,439
COSTS OF REVENUES:
Total costs of revenues	34,716	33,958
Product revenue, net
REVENUES:
Total revenues	7,533	7,499
COSTS OF REVENUES:
Total costs of revenues	7,123	7,077
Pass-through revenue
REVENUES:
Total revenues	14,868	13,211
COSTS OF REVENUES:
Total costs of revenues	$ 14,868	$ 13,211