UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net Loss	$ (10,724)	$ (8,300)
Adjustments to reconcile net loss to net cash used in operating activities:
Change in fair value of contingent consideration	94	(335)
Change in fair value of contingent convertible notes payable	3,892	0
Amortization of convertible note issuance cost	166	0
Payment in kind interest expense	485	0
Depreciation and amortization	195	307
Provision for doubtful accounts, net of recoveries	238	0
Provision for excess and obsolete inventory	310	307
Loss on sale of property and equipment	8	2
Gain on lease termination	(584)	0
Non-cash lease expense	56	105
Stock compensation expense	739	778
Deferred income tax (benefit) expense	(4)	2
Changes in current assets and liabilities:
Accounts receivable	(180)	255
Inventories	(999)	(78)
Income taxes receivable	(10)	267
Other current assets	168	405
Other long-term assets	(388)	541
Accounts payable	616	695
Accrued liabilities	(2,564)	(317)
Income taxes payable	0	89
Interest payable	12	12
Net cash used in operating activities	(8,474)	(5,265)
Cash flows from investing activities:
Capital expenditures	0	(19)
Proceeds from sale of assets	24	2
Net cash provided by (used in) investing activities	24	(17)
Cash flows from financing activities:
Proceeds from issuance of convertible notes	21,150	0
Payment of issuance costs of convertible notes	(1,084)	0
Payments to tax authorities for shares withheld from employees	(59)	(105)
Proceeds from issuance of stock	0	38
Payments for finance leases	(14)	(14)
Net cash provided by (used in) financing activities	19,993	(81)
Effect of changes in exchange rates on cash and cash equivalents	8	23
Net change in cash, cash equivalents and restricted cash	11,551	(5,340)
Cash and cash equivalents at the beginning of period	11,534	38,660
Restricted cash at the beginning of period	1,790	664
Cash and cash equivalents and restricted cash at beginning of period	13,324	39,324
Cash and cash equivalents at end of period	24,835	33,945
Restricted cash at the end of period	40	40
Cash, cash equivalents and restricted cash at end of period	$ 24,875	$ 33,985