Basis of Presentation and Summary of Significant Accounting Policies - Reconciliation of Basic and Diluted Loss per Share (Details) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Numerator:
Net loss		$ (1,642)	$ (541)
Denominator:
Basic weighted average common shares outstanding (in shares)	[1]	3,612	3,086

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