Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating expenses:
General and administrative expenses	$ 577	$ 746
Gain on sale of assets	(445)	(50)
Total operating expenses	132	696
Loss from operations	(132)	(696)
Net loss and comprehensive loss	$ (132)	$ (696)
Net loss per common share - basic and diluted	$ (0.01)	$ (0.05)
Weighted-average common shares used to compute basic and diluted net loss per common share	13,410	13,397