Business, Liquidity and Capital Resources (Details) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
	Oct. 06, 2020	Sep. 24, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business, Liquidity and Capital Resources (Textual)
Cash and cash equivalents			$ 168,598	$ 564
Net losses			(33,978)	(7,830)
Working capital			166,520
Stockholders' equity			199,243	(2,128)	$ 4,778
Net cash used in operating activities			(23,407)	(5,011)
Non stock based compensation			9,746	$ 424
Net of offering costs			39,600,000
Gross proceeds	$ 11,600,000	$ 147,600,000	$ 42,500,000
Net proceeds	$ 11,100,000	$ 139,900,000