Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 7,075	$ 3,456
Trade accounts receivable, net	7,349	7,902
Inventories, net	17,636	23,952
Prepaid expenses and other current assets	4,881	1,892
Total current assets	36,941	37,202
Property, plant and equipment, net	4,911	5,366
Operating lease right-of-use (ROU) assets	1,128	1,560
Investments	0	742
Deferred tax assets, net	6,788	4,116
Capitalized product development cost	1,321	0
Other assets	410	422
Total assets	51,499	49,408
Current liabilities:
Accounts payable	6,327	9,822
Accrued compensation and related taxes	2,289	1,302
Accrued warranty expense	1,008	722
Accrued other expenses and other current liabilities	1,894	363
Short-term operating lease liabilities	571	525
Credit facility	0	6,476
Notes payable-current portion	0	71
Deferred revenue	1,885	1,137
Total current liabilities	13,974	20,418
Long-term operating lease liabilities	714	1,260
Deferred revenue	6,980	6,419
Total liabilities	21,668	28,097
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; 3,913,959 and 3,867,082 issued and 3,571,879 and 3,577,002 outstanding shares as of December 31, 2024 and 2023, respectively	2,348	2,320
Additional paid-in capital	49,386	48,602
Accumulated deficit	(15,850)	(24,209)
Treasury stock, at cost, 342,080 and 290,080 shares as of December 31, 2024, and 2023, respectively	(6,053)	(5,402)
Total stockholders’ equity	29,831	21,311
Total liabilities and stockholders’ equity	$ 51,499	$ 49,408