Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating expenses:
General and administrative expenses	$ 2,176	$ 2,174
Gain on sales of assets	(139)	(445)
Total operating expenses	2,037	1,729
Loss from operations	(2,037)	(1,729)
Other income and expenses:
Interest income	868	188
Total other income and expenses	868	188
Loss before income tax expense	(1,169)	(1,541)
Income tax expense	(12)	(3)
Net loss and comprehensive loss	$ (1,181)	$ (1,544)
Net loss per common share - basic	$ (0.08)	$ (0.11)
Net loss per common share - diluted	$ (0.08)	$ (0.11)
Weighted-average common shares used to compute basic net loss per common share	14,299	13,524
Weighted-average common shares used to compute diluted net loss per common share	14,299	13,524