Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net loss	$ (1,084)	$ (665)	$ (3,859)
Adjustments to reconcile net loss to net cash provided by operating activities:
Forgiveness of PPP loan	0	(2,181)	0
Depreciation and amortization	2,367	2,784	2,691
ROU asset amortization	949	906	935
Deferred income taxes	(531)	(371)	(339)
Loss on sale of fixed assets	0	0	94
Stock compensation expense	872	743	563
Changes in operating assets and liabilities:
Accounts receivable	377	(760)	424
Prepaid expenses and other current assets	363	(585)	392
Income tax receivable	2,339	(183)	(2,013)
Accounts payable	(546)	417	(281)
Operating lease liabilities	(967)	(1,078)	(914)
Accrued expenses	751	1,387	(1,776)
Net cash provided by (used in) operating activities	4,890	414	(4,083)
Cash flows from investing activities:
Proceeds from sale of fixed assets	0	0	140
Other assets	(21)	(38)	(7)
Purchases of property and equipment and capitalized software development costs	(187)	(182)	(991)
Net cash used in investing activities	(208)	(220)	(858)
Cash flows from financing activities:
Cash dividends paid	(1,186)	(279)	(993)
Proceeds from stock options and tax withholding related to vested shares from employee stock plans	(74)	(68)	(9)
Payments of equipment financing	(664)	(688)	(678)
Net cash (used in) provided by financing activities	(1,924)	(1,035)	501
Effect of exchange rate changes on cash	0	0	(10)
Net increase (decrease) in cash	2,758	(841)	(4,450)
Cash, beginning of year	1,992	2,833	7,283
Cash, end of year	4,750	1,992	2,833
Supplemental disclosures of cash flow information:
Cash paid for income taxes	0	405	249
Cash paid for interest	33	50	75
Cash paid for operating leases	1,044	1,151	1,038
Right-of-use assets acquired through operating leases	78	172	2,346
Non-cash investing and financing activities:
Purchases of equipment through accounts payable and accrued liabilities		0	241
Paycheck Protection Program CARES Act [Member]
Cash flows from financing activities:
Proceeds from long term det	$ 0	$ 0	$ 2,181