Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities
Net income (loss)	$ (9,873)	$ (17,048)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	4,993	5,378
Non-cash lease expense	1,373	962
Deferred income taxes	10	5
Stock-based compensation	5,227	4,130
Gain from sale of asset	(3,800)
Other	235	21
Change in operating assets and liabilities, net of effect of acquisitions and disposals:
Accounts receivable, net	3,340	1,014
Prepaid expenses and other current assets	(1,422)	123
Other long-term assets	8	102
Operating lease ROU assets and liabilities	(1,412)	(1,280)
Accounts payable	658	485
Accrued expenses and other liabilities	1,039	(7,265)
Deferred revenue	3,653	525
Net cash provided by (used in) operating activities	4,029	(12,848)
Cash flows from investing activities
Purchases of property and equipment	(3,423)	(3,361)
Proceeds from sale of assets	4,000
Cash paid for acquisitions, net of cash acquired		(1,900)
Net cash provided by (used in) investing activities	577	(5,261)
Cash flows from financing activities
Proceeds from promissory note	7,144
Proceeds from exercises of stock options and purchases under ESPP	28	445
Taxes paid on net share settlements of restricted stock units	(747)	(2,039)
Cash paid for acquisition holdback	(36)	(625)
Cash paid for contingent consideration liability	(856)	(934)
Cash paid for debt issuance costs	(38)
Other	(31)	(55)
Net cash provided by (used in) financing activities	5,464	(3,208)
Effect of foreign currency on cash, cash equivalents and restricted cash	(4)	4
Change in cash, cash equivalents and restricted cash	10,066	(21,313)
Cash, cash equivalents and restricted cash, beginning of period	19,126	31,935
Cash, cash equivalents and restricted cash, end of period	$ 29,192	$ 10,622