Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net loss	$ (2,958)	$ (3,674)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	2,038	2,585
Amortization of deferred loan costs	0	16
Stock-based compensation expense	1,132	1,021
Deferred income taxes	216	(209)
Foreign currency transaction (gains) losses on short-term intercompany balances	1,692	15
Changes in operating assets and liabilities:
Restricted cash	(54)	(69)
Billed receivables	3,688	3,055
Unbilled receivables	2,396	4,177
Prepaid expenses and other current assets	647	706
Other assets	27	1
Accounts payable and accrued expenses	(963)	(3,192)
Accrued payroll and related expenses	(2,148)	(1,453)
Refund liabilities	(492)	(647)
Deferred revenue	170	309
Noncurrent compensation obligations	0	184
Other long-term liabilities	33	87
Net cash provided by operating activities	5,424	2,912
Cash flows from investing activities:
Purchases of property and equipment, net of disposal proceeds	(1,116)	(844)
Net cash used in investing activities	(1,116)	(844)
Cash flows from financing activities:
Payment of deferred loan costs	0	(80)
Restricted stock remitted by employees for taxes	(51)	(5)
Proceeds from option exercises	45	2,183
Payments of deferred acquisition consideration	0	(1,978)
Repurchase of common stock	(5,488)	(40)
Net cash (used in) provided by financing activities	(5,494)	80
Effect of exchange rates on cash and cash equivalents	(1,161)	(151)
Net increase (decrease) in cash and cash equivalents	(2,347)	1,997
Cash and cash equivalents at beginning of period	25,735	43,700
Cash and cash equivalents at end of period	23,388	45,697
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	14	19
Cash paid during the period for income taxes, net of refunds received	$ 188	$ 948