Basis of Presentation and Summary of Significant Accounting Policies - Reconciliation of Basic and Diluted Loss per Share (Details) shares in Thousands, $ in Thousands		3 Months Ended
	Jun. 11, 2020	Mar. 31, 2022 USD ($) shares	Mar. 31, 2021 USD ($) shares
Numerator:
Net loss | $		$ (2,821)	$ (1,642)
Denominator:
Basic weighted average common shares outstanding (in shares)		6,437	3,612
Diluted weighted average common shares outstanding (in shares)		6,437	3,612
Reverse stock split ratio	0.2