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	$ (4,013)	$ (2,206)
Adjustments to reconcile net loss to net cash used in operating activities:
Share-based compensation expense	296	264
Depreciation and amortization	228	240
Deferred income taxes	(1,262)	(555)
Gain on the sale of fixed assets	0	(8)
Foreign currency transaction losses	35	90
Changes in operating assets and liabilities:
Accounts receivable	680	(1,330)
Inventories	(1,344)	1,309
Prepaid income taxes	(5)	(2)
Other current and long-term assets	(773)	(103)
Accounts payable	(400)	227
Accrued liabilities and other liabilities	(261)	(1,020)
Net cash used in operating activities	(6,819)	(3,094)
Cash flows from investing activities:
Capital expenditures	(496)	(68)
Proceeds from the sale of fixed assets	0	8
Collection (issuance) of note receivable	0	1,598
Net cash provided by (used in) investing activities	(496)	1,538
Cash flows from financing activities:
Proceeds from stock option exercises	0	91
Withholding taxes paid on stock issuance	(119)	(75)
Payment of bank financing costs	0	(31)
Net cash provided by financing activities	(119)	(15)
Effect of exchange rate changes on cash and cash equivalents	(29)	(60)
Increase (decrease) in cash and cash equivalents	(7,463)	(1,631)
Cash and cash equivalents, beginning of period	19,457	10,359
Cash and cash equivalents, end of period	11,994	8,728
Supplemental schedule of non-cash investing activities:
Capital expenditures included in accounts payable	$ 174	$ 27