Debt - Convertible Notes (Details) - USD ($) $ / shares in Units, $ in Millions				3 Months Ended	7 Months Ended	12 Months Ended
		Jan. 16, 2020	Mar. 29, 2019	Jun. 30, 2019	Jan. 16, 2020	Dec. 31, 2021	Dec. 31, 2020	Jan. 15, 2020
Debt Instrument [Line Items]
Common stock, par value (in dollars per share)						$ 0.0001	$ 0.0001
Preferred stock authorized (in shares)						5,000,000	5,000,000	5,000,000
Percentage of number of votes that each share of preferred stock holders are entitled to		11.07%				11.07%
Convertible Preferred Stock
Debt Instrument [Line Items]
Preferred stock authorized (in shares)						3,300,000	3,300,000	3,300,000
Preferred Stock
Debt Instrument [Line Items]
Conversion of convertible securities (in shares)						1,721,000	112,000
Common Stock
Debt Instrument [Line Items]
Conversion of convertible securities (in shares)	[1]					344,000	22,000
Convertible Debt
Debt Instrument [Line Items]
Proceeds from issuance of subordinated convertible promissory notes			$ 1.7
Interest rate on convertible notes				5.00%	10.00%
Accumulated interest		$ 0.1			$ 0.1
Net proceeds from the conversion of convertible debt to preferred stock		$ 1.8
Conversion price (in dollars per share)		$ 0.67			$ 0.67
Shares issued (in shares)		2,709,018
Common stock, par value (in dollars per share)		$ 0.0001	$ 0.0001		$ 0.0001
Preferred stock authorized (in shares)			2,000,000
Convertible Debt | Preferred Stock
Debt Instrument [Line Items]
Conversion of convertible securities (in shares)						1,721,023	111,548
Convertible Debt | Common Stock
Debt Instrument [Line Items]
Conversion of convertible securities (in shares)						344,205	22,310

[1]       *Shares outstanding for prior periods have been restated for the 1-for-5 reverse stock split effective June 11, 2020.