Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Revenue	$ 4,467	$ 3,526
Cost of goods sold	3,226	2,444
Gross profit (loss)	1,241	1,082
Operating expenses:
General and administrative	2,470	2,548
Sales and marketing	325	361
(Gain) loss on sale or disposal of assets and subsidiary	(2,084)	(577)
Income (loss) from operations	530	(1,250)
Other (expense) income:
Interest income	108	460
Realized gain (loss) on marketable securities	(1,824)	(165)
Unrealized gain (loss) on marketable securities		(171)
Realized gain (loss) on foreign currency translation	136	1
Total other (expense) income	(1,580)	125
Income (loss) before income taxes	(1,050)	(1,125)
Income tax expense	(13)	(22)
Net income (loss)	$ (1,063)	$ (1,147)
Net income (loss) per common share
Basic (in Dollars per share)	$ (0.43)	$ (0.42)
Diluted (in Dollars per share)	$ (0.43)	$ (0.42)
Weighted average common shares outstanding used in computing net income (loss) per common share
Basic (in Shares)	2,499,690	2,707,811
Diluted (in Shares)	2,499,690	2,707,811