Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Net income (loss)	$ (5,381)	$ 6,211
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	7,396	9,881
Amortization of deferred loan costs	67	137
Stock-based compensation expense	3,409	3,777
Deferred income taxes	(933)	115
Foreign currency transaction (gains) losses on short-term intercompany balances	1,073	(54)
Changes in operating assets and liabilities:
Restricted cash	(64)	(62)
Billed receivables	(2,762)	1,705
Unbilled receivables	7,921	216
Prepaid expenses and other current assets	541	(139)
Other assets	15	24
Accounts payable and accrued expenses	(2,871)	(4,001)
Accrued payroll and related expenses	(445)	(5,305)
Refund liabilities	(1,058)	(566)
Deferred revenue	(265)	(341)
Noncurrent compensation obligations	414	285
Other long-term liabilities	73	(1,588)
Net cash provided by operating activities	7,130	10,295
Cash flows from investing activities:
Purchases of property and equipment, net of disposal proceeds	(3,574)	(4,544)
Net cash used in investing activities	(3,574)	(4,544)
Cash flows from financing activities:
Repayments of long-term debt	0	(2,250)
Payment of deferred loan costs	(104)	0
Restricted stock repurchased from employees for withholding taxes	(568)	(1,241)
Proceeds from option exercises	2,790	611
Payments of deferred acquisition consideration	(2,208)	(1,904)
Net proceeds from issuance of common stock	0	4,118
Repurchase of common stock	(20,000)	0
Net cash used in financing activities	(20,090)	(666)
Effect of exchange rates on cash and cash equivalents	(873)	(484)
Net (decrease) increase in cash and cash equivalents	(17,407)	4,601
Cash and cash equivalents at beginning of period	43,700	37,806
Cash and cash equivalents at end of period	26,293	42,407
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	80	488
Cash paid during the period for income taxes, net of refunds received	$ 2,405	$ 2,315