Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net loss	$ (8,675)	$ (5,567)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	6,318	5,235
Operating lease right-of-use asset expense	2,248
Amortization of deferred loan costs	117	32
Noncash interest expense		616
Stock-based compensation expense	3,046	2,818
Foreign currency transaction (gains) losses on short-term intercompany balances	129	660
Deferred income taxes		169
Changes in operating assets and liabilities
Billed receivables	6,593	1,211
Unbilled receivables	(851)	(1,329)
Prepaid expenses and other current assets	(1,296)	427
Other assets	(1,567)	(69)
Accounts payable and accrued expenses	(2,930)	(1,728)
Accrued payroll and related expenses	(4,970)	(3,881)
Refund liabilities	(314)	26
Deferred revenue	(292)	388
Long-term incentive compensation payout		(5,380)
Net cash used in operating activities	(2,444)	(6,372)
Cash flows from investing activities:
Business acquisition, net of cash acquired		19
Purchases of property, equipment and software, net of disposal proceeds	(7,640)	(5,327)
Net cash used in investing activities	(7,640)	(5,308)
Cash flows from financing activities:
Repayments of credit facility	(3,000)	(9,500)
Proceeds from credit facility	14,400	13,500
Payment of deferred loan costs	(394)	(28)
Payment of earnout liability related to business acquisitions	(479)	(4,000)
Restricted stock repurchased from employees for withholding taxes	(750)	(1,279)
Repurchases of common stock	(2,228)
Proceeds from option exercises	221	3,264
Net cash provided by financing activities	7,770	1,957
Effect of exchange rates on cash and cash equivalents	(55)	739
Net decrease in cash, cash equivalents and restricted cash	(2,369)	(8,984)
Cash, cash equivalents and restricted cash at beginning of period	14,019	18,874
Cash, cash equivalents and restricted cash at end of period	11,650	9,890
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	385	177
Cash paid during the period for income taxes, net of refunds received	$ 1,638	$ 927