Liquidity and Capital Resources (Details) - USD ($) $ / shares in Units, $ in Thousands								1 Months Ended				3 Months Ended		6 Months Ended		12 Months Ended
	Jan. 01, 2022	Jan. 31, 2021	Jan. 27, 2021	Jan. 21, 2021	Jan. 17, 2021	Nov. 09, 2020	Aug. 09, 2020	Nov. 30, 2021	Jun. 30, 2021	Jan. 21, 2021	Nov. 30, 2019	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net Income (Loss)												$ 104,231	$ (180,306)	$ 190,949	$ (429,820)	$ (302,500)	$ (175,200)	$ (115,500)
Accumulated deficit												(760,036)		(760,036)		$ (950,985)
Issuance of common stock, net													$ 48,353	8,004	$ 200,440
Cash, cash equivalents and marketable securities												$ 150,500		$ 150,500
Common stock, par value per share (in dollars per share)												$ 0.001		$ 0.001		$ 0.001
PHC Notes
Aggregate principal amount							$ 35,000					$ 35,000		$ 35,000		$ 35,000
Financing fee shares issued							2,941,176
Conversion price							$ 0.54
Common stock, par value per share (in dollars per share)							$ 0.001
Masters Capital
Proceeds from issuance of stock		$ 22,800
Ascensia | PHC Notes
Aggregate principal amount							$ 35,000
Energy Capital, LLC
Cash and cash equivalents and other available credit				$ 8,000						$ 8,000
Energy Capital, LLC | Maximum
Issuance of convertible preferred stock, net				$ 4,000						$ 12,000
Share price				$ 0.25						$ 0.25
Convertible Preferred Equity
Amount of possible additional debt principal amount							$ 15,000
Convertible Preferred Equity | Masters Capital
Shares issued							3,000
Convertible Preferred Equity | Energy Capital, LLC
Issuance of convertible preferred stock, net						$ 12,000
Price per share (in dollars per share)				1,000						1,000
Collaboration and commercialization agreement term						24 months
Share price				1,000						$ 1,000
Threshold redemption period of temporary equity										6 months
Conversion price				0.3951						$ 0.3951
Series A Preferred Stock | Masters Capital
Shares issued		22,783
Price per share (in dollars per share)		$ 1,000					$ 1,000
Conversion price		$ 0.476
Series A Preferred Stock | Masters Capital | Maximum
Shares issued							27,000
Series B Preferred Stock
Maximum amount of shares that can be purchased under the equity line agreement at purchase price	$ 12,000
Regular Purchase, Shares Sold	0
Purchasers
Shares issued					40,000,000
Price per share (in dollars per share)					$ 1.25
Common stock, par value per share (in dollars per share)					$ 0.001
Net proceeds					$ 46,100
Proceeds from issuance of stock					$ 50,000
Overallotment | Purchasers
Price per share (in dollars per share)				1.925						$ 1.925
Underwriters Share Price				$ 1.799875
Overallotment | 2021 Public Offering
Shares issued			7,792,207	51,948,052
Net proceeds			$ 106,100
Open Market Sale Agreement
Shares issued									12,830,333					3,077,493
Proceeds from issuance of stock									$ 48,400					$ 8,000
Open Market Sale Agreement | Maximum
Issuance of common stock, net								$ 150,000			$ 50,000
Percentage of commission on proceeds from common stock								3.00%