Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net income	$ 664	$ 645
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	285	301
Operating lease asset amortization	834	811
Loss on disposal of assets	27	0
Stock-based compensation	228	340
Deferred income taxes	0	(1)
Changes in operating assets and liabilities:
Accounts receivable-trade	(104)	(69)
Inventory	2,356	823
Prepaid expenses	(130)	6
Other current assets	(12)	1
Accounts payable-trade	(2,053)	(1,395)
Accrued expenses and other liabilities	(694)	(477)
Income taxes, net	278	94
Other assets	(31)	48
Operating lease liabilities	(851)	(850)
Total adjustments	133	(368)
Net cash provided by operating activities	797	277
Cash flows from investing activities:
Purchase of property and equipment	(87)	(164)
Net cash used in investing activities	(87)	(164)
Cash flows from financing activities:
Payment of finance lease obligations	0	(4)
Net cash used in financing activities	0	(4)
Effect of exchange rate changes on cash and cash equivalents	(39)	71
Net increase in cash and cash equivalents	671	180
Cash and cash equivalents, beginning of period	7,975	10,155
Cash and cash equivalents, end of period	$ 8,646	$ 10,335