Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings (loss)	$ 662	$ 2,817
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	1,282	1,176
Provision for excess and obsolete inventory	176	135
Foreign exchange gain	(28)	(18)
Amortization of deferred compensation related to stock-based awards	349	474
Discount on shares sold under Employee Stock Purchase Plan	(8)	(8)
Proceeds from sale of demonstration equipment, net of gain	19	6
Deferred income tax expense (benefit)	226	(404)
Changes in assets and liabilities:
Trade accounts receivable	(982)	291
Inventories	(396)	(2,038)
Prepaid expenses and other current assets	508	(740)
Other assets	(22)	2
Operating lease liabilities	(447)	(423)
Accounts payable	1,311	403
Accrued wages and benefits	939	(654)
Accrued professional fees	(342)	(142)
Customer deposits and deferred revenue	(782)	921
Accrued sales commissions	66	(221)
Domestic and foreign income taxes payable	(406)	864
Other current liabilities	70	43
Deferred revenue, net of current portion	(121)	0
Other liabilities	(15)	(16)
Net cash provided by operating activities	2,075	2,484
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition of business, net of cash acquired	(18,904)	0
Purchase of property and equipment	(340)	(334)
Net cash used in investing activities	(19,244)	(334)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from short-term borrowings	273	0
Repayments of long-term borrowings	(1,181)	(1,025)
Proceeds from shares sold under Employee Stock Purchase Plan	46	40
Proceeds from stock options exercised	18	165
Settlement of employee tax liabilities in connection with treasury stock transaction	(30)	(33)
Net cash used in financing activities	(874)	(853)
Effects of exchange rates on cash	114	71
Net cash provided by (used in) all activities	(17,929)	1,368
Cash, cash equivalents and restricted cash at beginning of period	45,260	14,576
Cash, cash equivalents and restricted cash at end of period	27,331	15,944
Cash payments for:
Domestic and foreign income taxes	101	118
Details of acquisition:
Fair value of assets acquired, net of cash	33,750
Liabilities assumed	(24,004)
Stock issued	(2,086)
Cash holdback pending final working capital adjustment	(552)
Goodwill resulting from acquisition	11,796
Net cash paid for acquisition	$ 18,904	$ (0)