Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 21,471	$ 7,075
Trade accounts receivable, net	7,579	7,349
Inventories, net	18,575	17,636
Prepaid expenses and other current assets	4,123	4,881
Total current assets	51,748	36,941
Property, plant and equipment, net	4,464	4,911
Operating lease right-of-use (ROU) assets	764	1,128
Deferred tax assets, net	6,620	6,788
Capitalized product development cost	2,837	1,321
Other assets	431	410
Total assets	66,864	51,499
Current liabilities:
Accounts payable	10,835	6,327
Accrued compensation and related taxes	2,492	2,289
Accrued warranty expense	850	1,008
Accrued other expenses and other current liabilities	635	1,894
Short-term operating lease liabilities	489	571
Deferred revenue	2,604	1,885
Total current liabilities	17,905	13,974
Long-term operating lease liabilities	372	714
Long-term uncertain tax position liability	1,419	0
Deferred revenue	6,218	6,980
Total liabilities	25,914	21,668
Commitments and contingencies
Stockholders’ equity:
Preferred stock; $1.00 par value; 1,000,000 authorized shares; none issued or outstanding	0	0
Common stock; $0.60 par value; 10,000,000 authorized shares; 4,084,386 and 3,913,959 issued, and 3,742,306 and 3,571,879 outstanding shares as of September 30, 2025 and December 31, 2024, respectively	2,451	2,348
Additional paid-in capital	51,093	49,386
Accumulated deficit	(6,541)	(15,850)
Treasury stock, at cost, 342,080 shares as of September 30, 2025, and December 31, 2024	(6,053)	(6,053)
Total stockholders’ equity	40,950	29,831
Total liabilities and stockholders’ equity	$ 66,864	$ 51,499