CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows from operating activities
Net (loss) income	$ (3,609)	$ 3,886
Adjustments to reconcile net (loss) income to net cash and cash equivalents provided by (used in) operating activities:
Credit loss expense	0	42
Depreciation	185	101
Amortization of right-of-use asset	118	95
Provision for product warranties	138	186
Stock-based compensation	146	156
Deferred income taxes	(613)	496
Changes in operating assets and liabilities:
Accounts receivable	7,109	(7,690)
Inventories	(3,176)	(1,021)
Prepaid inventory	666	(347)
Other current assets	(842)	(218)
Other noncurrent assets	117	149
Accounts payable and accrued expenses	554	491
Operating lease liability	(118)	(85)
Income tax payable		(37)
Deferred revenue	(35)	46
Product warranties	(200)	(207)
Net cash provided by (used in) operating activities	440	(3,957)
Cash flows from investing activities
Acquisition of property and equipment	(34)	(236)
Net cash used in investing activities	(34)	(236)
Cash flows from financing activities
Repurchase of common stock	(300)
Exercise of stock options		17
Net cash (used in) provided by financing activities	(300)	17
Net increase (decrease) in cash and cash equivalents	106	(4,176)
Cash and cash equivalents – beginning of period	22,056	23,148
Cash and cash equivalents – end of period	22,162	18,972
Supplemental disclosure of cash flow information:
Interest paid
Income tax paid	979	935
Supplemental schedule of noncash investing and financing transactions:
Transfer of inventory to property and equipment	868	113
Lease liability arising from obtaining right-of-use-assets	$ 111