CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash	$ 3,543	$ 3,676
Accounts receivable, net	2,274	5,929
Employee retention tax credit receivable	650	650
Inventory	202	254
Contract assets	418	352
Prepaid expenses and other current assets	287	103
Total current assets	7,374	10,964
Property, plant and equipment, net	3,166	1,727
Intangibles, net	42	38
Right-of-use operating lease assets	7,114	1,861
Other assets	183	136
Total assets	17,879	14,726
Current liabilities:
Accounts payable and accrued expenses	2,191	2,310
Contract liabilities	46	250
Current lease liabilities	666	1,306
Total current liabilities	2,903	3,866
Operating lease liability, long-term	6,625	588
Total liabilities	9,528	4,454
Commitments and contingencies (Note 8)
Stockholders' equity:
Common stock, 24,500,000 shares authorized at $0.001 par value, 15,906,010 issued at September 30, 2022 and December 31, 2021	16	16
Additional paid-in capital	73,757	73,686
Treasury stock, 4,017,808 shares at September 30, 2022 and 3,517,145 shares at December 31, 2021, at cost	(3,135)	(2,809)
Accumulated deficit	(62,287)	(60,621)
Total stockholders' equity	8,351	10,272
Total liabilities and stockholders' equity	$ 17,879	$ 14,726