Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities
Net loss	$ (10,676)	$ (10,286)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	2,487	2,716
Non-cash lease expense	691	475
Deferred income taxes	7	16
Stock-based compensation	2,704	1,921
Other	42	23
Change in operating assets and liabilities, net of effect of acquisitions and disposals:
Accounts receivable, net	4,776	1,767
Prepaid expenses and other current assets	(506)	61
Other long-term assets		60
Operating lease ROU assets and liabilities	(702)	(796)
Accounts payable	(1,264)	1,881
Accrued expenses and other liabilities	(3,869)	(6,156)
Deferred revenue	2,430	1,355
Net cash used in operating activities	(3,880)	(6,963)
Cash flows from investing activities
Purchases of property and equipment	(1,708)	(1,607)
Cash paid for acquisitions, net of cash acquired		(1,900)
Net cash used in investing activities	(1,708)	(3,507)
Cash flows from financing activities
Proceeds from exercises of stock options and purchases under ESPP	6	270
Taxes paid on net share settlements of restricted stock units	(556)	(1,322)
Cash paid for acquisition holdback	(36)
Cash paid for debt issuance costs	(6)
Other	(16)	(30)
Net cash used in financing activities	(608)	(1,082)
Effect of foreign currency on cash, cash equivalents and restricted cash	2
Change in cash, cash equivalents and restricted cash	(6,194)	(11,552)
Cash, cash equivalents and restricted cash, beginning of period	19,126	31,935
Cash, cash equivalents and restricted cash, end of period	$ 12,932	$ 20,383