Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 2,688	$ 1,918
Trade accounts receivable, net	9,189	10,616
Inventories, net	22,911	22,105
Prepaid expenses and other current assets	1,382	1,578
Total current assets	36,170	36,217
Property, plant and equipment, net	5,025	4,884
Right-of-use (ROU) assets	1,777	1,991
Investments	992	1,481
Deferred tax assets, net	4,116	4,116
Other assets	379	143
Total assets	48,459	48,832
Current liabilities:
Accounts payable	12,549	12,898
Accrued compensation and related taxes	1,572	1,143
Accrued warranty expense	730	591
Accrued other expenses and other current liabilities	786	700
Short-term lease liabilities	503	485
Credit facility	6,516	5,854
Notes payable-current portion	93	277
Deferred revenues	1,055	1,022
Total current liabilities	23,804	22,970
Notes payable, net of current portion	24	329
Long-term lease liabilities	1,529	1,785
Deferred revenue	5,276	3,613
Total liabilities	30,633	28,697
Stockholders' equity:
Preferred stock; $1.00 par value; 1,000,000 authorized shares; none issued or outstanding	0	0
Common stock; $.60 par value; 10,000,000 authorized shares; 3,694,298 and 3,686,939 issued and 3,404,218 and 3,396,859 outstanding shares at June 30, 2023 and December 31, 2022, respectively	2,217	2,212
Additional paid-in capital	45,600	45,304
Accumulated deficit	(24,589)	(21,979)
Treasury stock, at cost, 290,080 shares at June 30, 2023, and December 31, 2022, respectively	(5,402)	(5,402)
Total stockholders' equity	17,826	20,135
Total liabilities and stockholders' equity	$ 48,459	$ 48,832