Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings	$ 5,217	$ 6,996
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:
Depreciation and amortization	3,674	2,166
Provision for excess and obsolete inventory	307	154
Foreign exchange loss	107	36
Amortization of deferred compensation related to stock-based awards	1,373	1,094
Discount on shares sold under Employee Stock Purchase Plan	(28)	0
Loss on disposal of property and equipment	45	20
Deferred income tax benefit	(1,162)	(221)
Changes in assets and liabilities:
Trade accounts receivable	(4,900)	(3,874)
Inventories	(8,549)	(2,051)
Prepaid expenses and other current assets	(907)	(26)
Restricted certificates of deposit	0	40
Other assets	(1)	(10)
Operating lease liabilities	(1,064)	(918)
Accounts payable	3,947	1,425
Accrued wages and benefits	(527)	942
Accrued professional fees	(153)	52
Customer deposits and deferred revenue	(827)	1,697
Accrued sales commissions	310	366
Domestic and foreign income taxes payable	(672)	302
Other current liabilities	35	(60)
Other liabilities	61	(7)
Net cash provided by (used in) operating activities	(3,658)	8,123
CASH FLOWS FROM INVESTING ACTIVITIES
Refund of final working capital adjustment related to Acculogic	371	0
Purchase of property and equipment	(1,043)	(577)
Purchase of short-term investments	(3,494)	0
Net cash used in investing activities	(4,166)	(577)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from stock options exercised	38	1,019
Proceeds from shares sold under Employee Stock Purchase Plan	148	0
Shares redeemed into treasury stock	(10)	0
Net cash provided by (used in) financing activities	(2,757)	1,019
Effects of exchange rates on cash	(576)	(99)
Net cash provided by (used in) all activities	(11,157)	8,466
Cash, cash equivalents and restricted cash at beginning of period	21,195	10,277
Cash, cash equivalents and restricted cash at end of period	10,038	18,743
Cash payments for:
Domestic and foreign income taxes	2,926	1,053
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING ACTIVITIES:
Decrease in fair value of assets acquired	(371)
Increase in liability for contingent consideration	500
Increase in fair value of intangible assets	(49)
Increase in goodwill	(451)
Term Note [Member]
CASH FLOWS FROM FINANCING ACTIVITIES
Repayments of Term Note	$ (2,933)	$ 0