CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 5,904	$ 10,580
Trade accounts receivable, net	6,519	8,229
Inventories, net	22,498	16,978
Prepaid expenses and other current assets	1,282	1,634
Total current assets	36,203	37,421
Property, plant and equipment, net	4,574	4,556
Right-of-use (ROU) asset	2,198	2,399
Investment in securities	697	1,795
Deferred tax assets, net	4,116	4,116
Other assets	137	98
Total assets	47,925	50,385
Current liabilities:
Accounts payable	9,804	5,883
Accrued compensation and related taxes	1,781	1,099
Accrued warranty expense	551	533
Accrued other expenses and other current liabilities	417	938
Dividends payable	508	505
Short-term lease liability	466	447
Credit facility	3,958	1,470
Notes payable-current portion	272	267
Deferred revenue	1,063	1,045
Total current liabilities	18,820	12,187
Notes payable, net of current portion	468	605
Long-term lease liability	2,032	2,269
Deferred revenue	2,894	2,706
Total liabilities	24,214	17,767
Stockholders' equity:
Preferred stock; $1.00 par value; 1,000,000 authorized shares; none issued or outstanding	0	0
Common stock; $.60 par value; 50,000,000 authorized shares; 18,368,863 and 18,298,999 issued and 16,918,463 and 16,848,599 outstanding shares at June 30, 2022, and December 31, 2021, respectively	11,021	10,979
Additional paid-in capital	36,197	35,862
Accumulated deficit	(18,105)	(8,821)
Treasury stock, at cost, 1,450,400 shares at June 30, 2022, and December 31, 2021, respectively	(5,402)	(5,402)
Total stockholders' equity	23,711	32,618
Total liabilities and stockholders' equity	$ 47,925	$ 50,385