Inventory (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 4,721,000	$ 1,352,000
Work in process	7,925,000	4,142,000
Finished goods	1,479,000	222,000
Total inventory	14,125,000	5,716,000
Inventory write-down	$ 100,000	$ 0