Consolidated Statement of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating Activities:
Net income from continuing operations	$ 2,869	$ 153
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	2,811	3,027
Intangible asset amortization	336	267
Stock-based compensation	3,988	2,921
Loss on disposal/sale of property and equipment	1	113
Restructuring costs	(291)	353
Bad debt provision	85	(44)
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(275)	(896)
Inventories	(5,533)	(2,481)
Prepaid expenses and other assets	153	531
Deferred tax assets	(909)	0
Accounts payable	(605)	14
Income taxes payable	430	3
Other accrued liabilities	1,127	1,417
Deferred revenue	(39)	295
Net cash provided by operating activities	4,148	5,673
Investing Activities:
Capital expenditures	(809)	(2,330)
Purchase of investments	(25,993)	(25,928)
Redemptions/maturities of short-term investments	26,301	38,588
Cash paid for acquisition, net of cash acquired	0	(6,277)
Net cash (used in) provided by investing activities	(501)	4,053
Financing Activities:
Proceeds from issuance of common stock	797	840
Payment of withholding tax on stock-based compensation	(412)	(786)
Principle payments on finance leases	(61)	(73)
Purchase of common stock from repurchase program	0	(3,193)
Cash dividends	(4,075)	(4,034)
Net cash used in financing activities	(3,751)	(7,246)
Net (decrease) increase in cash and cash equivalents	(104)	2,480
Effect of exchange rate changes on cash	(352)	(49)
Cash and cash equivalents, beginning of year	8,192	5,761
Cash and Cash Equivalents, End of Year	7,736	8,192
Other information:
Cash paid for income taxes	40	30
Cash paid for interest	5	7
Non-cash investing and financing information:
(Decreases) increases to additional paid-in capital related to restricted stock	(90)	88
Issuance of restricted common stock, net of cancellations	967	575
Recognition of ROU assets under operating leases	287	245
Recognition of ROU assets under finance leases	$ 32	$ 63