Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net income (loss)	$ (1,144)	$ (1,861)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	3,244	4,096
Stock-based compensation expense	1,799	3,149
(Gain) Loss on sale of fixed assets	14	0
Deferred income taxes	(267)	191
Foreign currency transaction (gains) losses on short-term intercompany balances	(811)	1,276
Changes in operating assets and liabilities:
Restricted cash	(96)	(109)
Billed receivables	2,077	4,903
Unbilled receivables	190	1,490
Prepaid expenses and other current assets	(510)	(513)
Other assets	(44)	31
Accounts payable and accrued expenses	1,105	(234)
Accrued payroll and related expenses	(442)	(4,133)
Refund liabilities	109	(444)
Deferred revenue	17	(351)
Other long-term liabilities	221	(9)
Net cash provided by operating activities	5,462	7,482
Cash flows from investing activities:
Purchases of property and equipment, net of disposal proceeds	(2,138)	(2,197)
Net cash used in investing activities	(2,138)	(2,197)
Cash flows from financing activities:
Restricted stock repurchased from employees for withholding taxes	(143)	(280)
Proceeds from option exercises	132	45
Repurchase of common stock	(3,658)	(10,340)
Net cash used in financing activities	(3,669)	(10,575)
Effect of exchange rates on cash and cash equivalents	397	(763)
Net increase (decrease) in cash and cash equivalents	52	(6,053)
Cash and cash equivalents at beginning of period	15,122	25,735
Cash and cash equivalents at end of period	15,174	19,682
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	15	14
Cash paid during the period for income taxes, net of refunds received	$ 385	$ 449