Liquidity and Going Concern Considerations (Details)		3 Months Ended	12 Months Ended
	Apr. 06, 2022 USD ($) customer agreement	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($) agreement	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Liquidity and Going Concern [Line Items]
Accumulated deficit			$ (370,080,000)	$ (337,406,000)
Stockholders' equity			2,535,000	34,170,000	$ 20,320,000
Cash and cash equivalents and investments available-for-sale			22,400,000
Working capital			14,300,000
Net cash used in operating activities			$ (33,534,000)	$ (29,641,000)
Number of major customers | agreement			2
Subsequent event
Liquidity and Going Concern [Line Items]
Number of major customers | customer	2
Number of agreements | agreement	2
Additional capital earned	$ 15,000,000
Subsequent event | DaVita | Share Issuance, Tranche One
Liquidity and Going Concern [Line Items]
Proceeds from issuance of convertible preferred stock	$ 7,500,000
Subsequent event | DaVita | Forecast | Share Issuance, Tranche Two
Liquidity and Going Concern [Line Items]
Proceeds from issuance of convertible preferred stock		$ 7,500,000
Subsequent event | DaVita | Forecast | Series X Convertible Preferred Stock | Private Placement
Liquidity and Going Concern [Line Items]
Sale of stock consideration		$ 15,000,000