Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net loss	$ (13,926)	$ (11,299)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	7,299	6,819
Amortization of contract acquisition costs	314	515
Amortization of ROU assets	4,745	4,690
Stock-based compensation	3,549	2,320
Restructuring and other related costs	935	645
Other	353	35
Net changes in operating assets and liabilities:
Accounts receivable, net	4,160	1,704
Prepaid expenses and other assets	551	1,299
Contract acquisition costs	(117)	(129)
Accounts payable	1,061	(2,452)
Accrued compensation and benefits	(2,948)	(1,431)
Operating lease liabilities	(5,532)	(4,385)
Accrued expenses	(653)	(823)
Other liabilities	286	(578)
Net cash provided by (used in) operating activities	77	(3,070)
Cash flows from investing activities:
Purchases of property and equipment	(2,092)	(2,596)
Net cash used in investing activities	(2,092)	(2,596)
Cash flows from financing activities:
Repayment on finance lease obligations	(315)	(481)
Proceeds from Revolver		27,000
Repayment of Revolver		(7,000)
Proceeds from issuance of common stock	136	76
Net cash (used in) provided by financing activities	(179)	19,595
Effect of exchange rate changes on cash and cash equivalents and restricted cash	626	(68)
Net change in cash and cash equivalents and restricted cash	(1,568)	13,861
Cash and cash equivalents and restricted cash, beginning of period	36,326	29,383
Cash and cash equivalents and restricted cash, end of period	34,758	43,244
Supplemental disclosures of cash flow information:
Cash paid for interest	210	226
Supplemental disclosures of non-cash activities:
Purchases of property and equipment accrued in accounts payable and accrued expenses	7	71
ROU assets obtained in exchange for new lease liabilities	$ 618	$ 204