CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities
Net (loss) income	$ (6,378)	$ 4,954	$ 6,304
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation expense	1,903	1,760	1,792
Amortization of intangible assets	5,966	5,323	5,581
Bargain purchase gain			(146)
Tax expense (benefit) from stock issuances	147	(310)	(346)
Amortization of deferred financing costs	302	141	153
Stock-based compensation	7,047	5,049	3,107
Change in fair value of contingent consideration	(210)	468	658
Changes in accounts receivable allowance	34	174	(100)
Deferred tax benefit	(1,904)	(1,958)	(1,789)
(Gain) Loss on disposal of fixed assets		3	19
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	2,068	(7,506)	(2,321)
Prepaid expense and other assets	(714)	(1,820)	(456)
Accounts payable	1,732	(612)	1,121
Deferred revenue	1,409	(372)	953
Debt issuance costs	(2,730)
Accrued expenses	1,987	1,519	(7,523)
Net cash provided by operating activities	10,659	6,813	7,007
Cash flows from investing activities
Acquisitions net of cash acquired	(55,187)	(537)	(890)
Restricted cash	(103)	(30)	(310)
Purchase of furniture, fixtures and equipment	(2,359)	(1,378)	(2,170)
Net cash used in investing activities	(57,649)	(1,945)	(3,370)
Cash flows from financing activities
Proceeds from debt	72,281
Proceeds from issuance of common stock	12,000
Principal payments on borrowings	(4,850)	(2,591)	(3,375)
Proceeds from issuance of ESPP shares	561	581	576
Payment of contingent consideration	(3,854)	(2,322)	(1,633)
Installment payment for acquisition of CCI		(661)
Dividend paid		(5,189)
Debt issuance costs	(137)
Tax (expense) benefit from stock issuances	(147)	310	346
Equity securities repurchased	(11,565)	(3,381)	(5,320)
Net cash provided by (used in) financing activities	64,289	(13,253)	(9,406)
Effect of exchange rate changes on cash	(649)	(1,442)	(1,654)
Net increase (decrease) in cash and cash equivalents	16,650	(9,827)	(7,423)
Cash and cash equivalents, beginning of period	17,835	27,662	35,085
Cash and cash equivalents, end of period	34,485	17,835	27,662
Cash paid for:
Interest	1,926	1,464	1,785
Taxes	5,714	4,526	5,721
Noncash financing activities:
Issuance of treasury stock for vested restricted stock awards	$ 5,767	$ 4,913	$ 2,294