CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities
Net income (loss)	$ 2,526	$ (876)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense	1,357	2,071
Amortization of intangible assets	2,538	4,751
Deferred tax (benefit) expense from stock issuances	(152)	289
Amortization of deferred financing costs	394	510
Loss on sublease		578
Stock-based compensation	4,646	3,510
Changes in accounts receivable allowance	452	251
Deferred tax provision (benefit)	106	(1,860)
Loss on disposal of fixed assets	28	14
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(2,180)	(5,526)
Prepaid expense and other assets	(434)	995
Accounts payable	(182)	(1,670)
Deferred revenue	(1,859)	21
Debt issuance costs		(38)
Accrued expenses	(91)	(1,345)
Net cash provided by operating activities	7,149	1,675
Cash flows from investing activities
Acquisitions, net of cash acquired		(889)
Purchase of furniture, fixtures and equipment	(3,357)	(1,479)
Net cash used in investing activities	(3,357)	(2,368)
Cash flows from financing activities
Principal payments on borrowings	(6,511)	(2,768)
Proceeds from issuance of employee stock purchase plan shares	442	306
Installment payment for acquisitions		(542)
Payment of contingent consideration	(1,200)	(2,594)
Payments related to tax withholding for stock-based compensation	(2,396)	(1,963)
Equity securities repurchased	(2,532)	(2,729)
Net cash used in financing activities	(12,197)	(10,290)
Effect of exchange rate changes on cash	(577)	1,560
Net decrease in cash, cash equivalents, and restricted cash	(8,982)	(9,423)
Cash, cash equivalents, and restricted cash, beginning of period	28,514	34,982
Cash, cash equivalents, and restricted cash, end of period	19,532	25,559
Non-cash investing and financing activities:
Issuance of treasury stock for vested restricted stock awards	$ 4,064	$ 5,960