Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Total revenue	$ 5,073	$ 3,687	$ 10,709	$ 7,710
Operating costs and expenses:
Cost of cryptocurrency mining revenue	779	248	1,652	248
Cost of data hosting revenue	964		964
Cost of product revenue	661	631	1,616	1,790
Research and product development expenses	404	363	1,196	1,127
Selling, general and administrative expenses	2,893	990	7,761	2,632
Operating (loss) income	(628)	1,455	(2,480)	1,913
Other income, net	18	55	31	59
(Loss) income before income taxes	(610)	1,510	(2,449)	1,972
Income tax (expense) benefit	0	(3)	(3)	0
Net (loss) income	$ (610)	$ 1,507	$ (2,452)	$ 1,972
Net loss per share (Basic)	$ (0.06)	$ 0.16	$ (0.23)	$ 0.21
Net loss per share (Diluted)	$ (0.06)	$ 0.16	$ (0.23)	$ 0.20
Weighted average shares outstanding (Basic)	12,702,393	9,570,677	11,413,678	9,570,677
Weighted average shares outstanding (Diluted)	12,702,393	9,684,052	11,413,678	9,656,455
Cryptocurrency Revenue [Member]
Total revenue	$ 2,018	$ 176	$ 4,670	$ 226
Data Hosting Revenue [Member]
Total revenue	1,106	0	1,106	0
Product Revenue [Member]
Total revenue	$ 1,949	$ 3,511	$ 4,933	$ 7,484