CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income (loss)	$ 993	$ (137)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	4,904	6,081
Operating lease cost	301	340
Non-cash compensation	203	370
Deferred income tax expense	79
Gain on disposal of assets	(4)	(44)
Remeasurement and other	(130)	(153)
Change in operating assets and liabilities:
Increase in accounts receivable	(8,658)	(10,291)
(Increase) decrease in prepaid expenses and other assets	(1,738)	3,503
Increase in accounts payable	942	2,606
Decrease in accrued liabilities	1,551	1,270
Decrease in operating lease liabilities	(303)	(286)
Increase(decrease) in deferred revenue	1,687	(4,826)
Net cash used in operating activities	(173)	(1,567)
Cash flows from investing activities:
Capital expenditures, net of non-cash capital expenditures summarized below	(1,777)	(1,944)
Proceeds from maturity of short-term investments		9,000
Acquisition of short-term investments		(9,000)
Proceeds from disposal of assets	85	80
Proceeds from notes receivable	13	13
Net cash used in investing activities	(1,679)	(1,851)
Cash flows from financing activities:
Principal payments on notes payable	(707)	(1,146)
Principal payments on finance leases	(725)	(700)
Tax withholdings related to stock-based compensation awards		(206)
Net cash used in financing activities	(1,432)	(2,052)
Effect of exchange rate changes on cash and cash equivalents and restricted cash	(135)	146
Net decrease in cash and cash equivalents and restricted cash	(3,419)	(5,324)
Cash and cash equivalents and restricted cash at beginning of period	31,271	28,729
Cash and cash equivalents and restricted cash at end of period	27,852	23,405
Supplemental cash flow information:
Cash paid for interest	42	144
Non-cash operating, investing and financing activities:
Increase (decrease) in accrued purchases of property and equipment	(567)	938
Finance leases incurred		40
Increase in right-of-use assets and operating lease liabilities		8,337
Decrease in right-of-use assets for accrued rent		(497)
Increase in right-of-use assets for prepaid rent		14
Financed insurance premiums	$ 434	$ 337