CONSOLIDATED STATEMENTS OF CASH FLOWS - Scenario, Unspecified [Domain] - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities attributable to continuing operations:
Net income (loss) and comprehensive income (loss)	$ 9,909	$ (6,656)
Less: Loss from discontinued operations, net of tax	1,943	3,505
Net income (loss) from continuing operations	11,852	(3,151)
Adjustments to reconcile income (loss) from continuing operations to net cash provided by operating activities attributable to continuing operations:
Loss on disposal of fixed assets	38	52
Amortization of intangibles	99	55
Depreciation	1,371	1,701
Non-cash compensation expense	4,393	3,073
Deferred income taxes	0	(1)
Excess tax benefit from stock-based award activity	(208)
Bad debt expense	176	143
Changes in current assets and liabilities:
Accounts receivable	(7,081)	(813)
Prepaid and other current assets	(165)	(399)
Accounts payable, accrued expenses and other current liabilities	4,450	1,107
Income taxes payable	202	576
Other, net	75	(161)
Net cash provided by operating activities attributable to continuing operations	15,202	2,182
Cash flows from investing activities attributable to continuing operations:
Capital expenditures	(2,707)	(2,039)
Acquisition of a business	(37)	(530)
Decrease in restricted cash	94	3,973
Net cash (used in) provided by investing activities attributable to continuing operations	(2,650)	1,404
Cash flows from financing activities attributable to continuing operations:
Payments related to net-share settlement of stock-based compensation, net of proceeds from exercise of stock options	(5,294)	(3,237)
Excess tax benefit from stock-based award activity	208
Purchase of treasury stock	(218)	(1,470)
Dividends	(76)	(140)
Net cash used in financing activities attributable to continuing operations	(5,380)	(4,847)
Total cash provided by (used in) continuing operations	7,172	(1,261)
Net cash used in operating activities attributable to discontinued operations	(417)	(2,788)
Total cash used in discontinued operations	(417)	(2,788)
Net increase (decrease) in cash and cash equivalents	6,755	(4,049)
Cash and cash equivalents at beginning of period	86,212	91,667
Cash and cash equivalents at end of period	$ 92,967	$ 87,618