Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Sep. 30, 2021
Current assets:
Cash and cash equivalents	$ 2,552	$ 1,837	$ 2,608
Restricted cash	1,101	581	334
Accounts receivable, net of allowances of $262, $250 and $250, respectively	1,682	6,469	7,013
Unbilled revenue	5,005	2,219	2,488
Income tax receivable	102	0	0
Inventories, net of allowance of $3,871, $3,567 and $3,476, respectively	9,563	5,653	5,922
Prepaid expenses and other current assets	1,399	1,371	1,431
Total current assets	21,404	18,130	19,796
Machinery and equipment	5,542	5,354	4,973
Leasehold improvements	899	821	813
Total property and equipment, at cost	6,441	6,175	5,786
Less: Accumulated depreciation	(3,057)	(2,558)	(2,293)
Net property and equipment	3,384	3,617	3,493
Right-of-use lease assets	1,540	2,466	2,730
Intangibles, net of accumulated amortization	709	1,027	1,107
Goodwill	58	58	58
Other assets	123	128	128
Total assets	27,218	25,426	27,312
Current liabilities:
Accounts payable	9,407	6,812	7,044
Accrued expenses	1,445	1,184	1,581
Deferred revenue	148	207	168
Bank line of credit	0	2,050	2,050
Right-of-use lease obligations, current	1,204	1,177	1,198
Finance lease obligations, current	636	652	582
Other current liabilities	442	706	692
Total current liabilities	13,282	12,788	13,315
Right-of-use lease obligations, long-term	635	1,839	2,141
Finance lease obligations, long-term	1,254	1,484	1,429
Total liabilities	15,171	16,111	16,885
Shareholders’ equity:
Common stock, $.01 par value; 30,000,000 shares authorized; 14,132,033, 13,041,127, and 12,610,229 shares issued and outstanding, respectively	141	130	126
Paid in capital	2,585	335	(578)
Retained earnings	9,321	8,850	10,879
Total shareholders’ equity	12,047	9,315	10,427
Total liabilities and shareholders’ equity	$ 27,218	$ 25,426	$ 27,312