Condensed Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Revenues	$ 3,718	$ 2,121	$ 7,488	$ 3,493
Cost of revenues	4,044	2,395	8,119	3,916
Gross loss	(326)	(274)	(631)	(423)
Operating expenses	2,490	1,369	4,465	2,472
Loss from operations	(2,816)	(1,643)	(5,096)	(2,895)
Other income (expense)
Interest income	15	2	17	3
Interest expense	(1)	0	(1)	0
Total other income, net	14	2	16	3
Loss before income tax expense	(2,802)	(1,641)	(5,080)	(2,892)
Income tax expense	1	1	1	1
Net loss	$ (2,803)	$ (1,642)	$ (5,081)	$ (2,893)
Net loss per share - basic	$ (0.28)	$ (0.18)	$ (0.52)	$ (0.33)
Net loss per share - diluted	$ (0.28)	$ (0.18)	$ (0.52)	$ (0.33)
Weighted average shares outstanding - basic	10,075	8,882	9,694	8,824
Weighted average shares outstanding - diluted	10,075	8,882	9,694	8,824