Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings	$ 1,387	$ 7,887
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	4,469	3,515
Provision for excess and obsolete inventory	509	385
Foreign exchange (gain) loss	(78)	17
Amortization of deferred compensation related to stock-based awards	1,450	1,623
Discount on shares sold under Employee Stock Purchase Plan	20	21
Loss on disposal of property and equipment	24	11
Proceeds from sale of rental equipment, net of gain	148	153
Deferred income tax expense (benefit)	140	(1,101)
Adjustment to contingent consideration liability	0	(358)
Changes in assets and liabilities:
Trade accounts receivable	(3,694)	480
Inventories	(129)	(9)
Prepaid expenses and other current assets	569	(313)
Other assets	(27)	(492)
Operating lease liabilities	(1,173)	(1,275)
Accounts payable	(1,029)	(100)
Accrued wages and benefits	(533)	125
Accrued professional fees	177	305
Customer deposits and deferred revenue	468	(105)
Accrued sales commissions	25	(292)
Domestic and foreign income taxes payable	(817)	(292)
Other current liabilities	(360)	320
Deferred revenue, net of current portion	(123)	1,033
Other liabilities	(189)	(17)
Net cash provided by operating activities	1,234	11,521
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition of business, net of cash acquired	(18,727)	0
Purchase of property and equipment	(1,161)	(983)
Net cash used in investing activities	(19,888)	(983)
CASH FLOWS FROM FINANCING ACTIVITIES
Net proceeds from public offering of common stock	0	19,244
Repurchases of common stock	(1,042)	0
Repayments of short-term borrowings	(1,856)	0
Repayments of long-term borrowings	(5,475)	(3,075)
Proceeds from stock options exercised	145	978
Proceeds from shares sold under Employee Stock Purchase Plan	111	118
Settlement of employee tax liabilities in connection with treasury stock transaction	(41)	(687)
Net cash (used in) provided by financing activities	(8,158)	16,578
Effects of exchange rates on cash	(476)	(7)
Net cash (used in) provided by all activities	(27,288)	27,109
Cash, cash equivalents and restricted cash at beginning of period	45,260	14,576
Cash and cash equivalents at end of period	17,972	41,685
Supplemental Cash Flow Information [Abstract]
Domestic and foreign income taxes	1,147	2,988
Details of acquisition:
Fair value of assets acquired, net of cash	36,219
Liabilities assumed	(26,046)
Stock issued	(2,086)
Goodwill resulting from acquisition	10,640
Net cash paid for acquisition	$ 18,727	$ (0)