CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash	$ 2,353	$ 3,676
Accounts receivable, net	2,920	5,929
Employee retention tax credit receivable	650	650
Inventory	202	254
Contract assets	281	352
Right-of-use finance lease assets	275	0
Prepaid expenses and other current assets	204	103
Total current assets	6,885	10,964
Property, plant and equipment, net	3,305	1,727
Intangibles, net	62	38
Right-of-use operating lease assets	6,184	1,861
Other assets	179	136
Total assets	16,615	14,726
Current liabilities:
Accounts payable and accrued expenses	1,516	2,310
Contract liabilities	333	250
Current operating lease liabilities	863	1,306
Current finance lease liabilities	277	0
Total current liabilities	2,989	3,866
Operating lease liability, long-term	6,518	588
Total liabilities	9,507	4,454
Commitments and contingencies (Note 9)
Stockholders' equity:
Common stock, 24,500,000 shares authorized at $0.001 par value, 15,906,010 issued at December 31, 2022 and December 31, 2021	16	16
Additional paid-in capital	73,776	73,686
Treasury stock, 4,017,808 shares at December 31, 2022 and 3,517,145 shares at December 31, 2021, at cost	(3,135)	(2,809)
Accumulated deficit	(63,549)	(60,621)
Total stockholders' equity	7,108	10,272
Total liabilities and stockholders' equity	$ 16,615	$ 14,726