Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net loss	$ (3,674)	$ (497)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	2,585	3,284
Amortization of deferred loan costs	16	46
Stock-based compensation expense	1,021	1,318
Deferred income taxes	(209)	(45)
Foreign currency transaction (gains) losses on short-term intercompany balances	15	357
Changes in operating assets and liabilities:
Restricted cash	(69)	(64)
Billed receivables	3,055	5,163
Unbilled receivables	4,177	1,507
Prepaid expenses and other current assets	706	(313)
Other assets	1	20
Accounts payable and accrued expenses	(3,192)	(2,359)
Accrued payroll and related expenses	(1,453)	(6,985)
Refund liabilities	(647)	(273)
Deferred revenue	309	279
Noncurrent compensation obligations	184	197
Other long-term liabilities	87	(786)
Net cash provided by operating activities	2,912	849
Cash flows from investing activities:
Purchases of property and equipment, net of disposal proceeds	(844)	(2,207)
Net cash used in investing activities	(844)	(2,207)
Cash flows from financing activities:
Repayments of long-term debt	0	(750)
Payment of deferred loan costs	(80)	0
Restricted stock repurchased from employees for withholding taxes	(5)	(430)
Proceeds from option exercises	2,183	336
Payments of deferred acquisition consideration	(1,978)	(1,656)
Net proceeds from issuance of common stock	0	4,118
Repurchase of common stock	(40)	0
Net cash provided by financing activities	80	1,618
Effect of exchange rates on cash and cash equivalents	(151)	(279)
Net increase (decrease) in cash and cash equivalents	1,997	(19)
Cash and cash equivalents at beginning of period	43,700	37,806
Cash and cash equivalents at end of period	45,697	37,787
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	19	71
Cash paid during the period for income taxes, net of refunds received	$ 948	$ 294