Subsequent Events (Details) $ / shares in Units, $ in Thousands		1 Months Ended		3 Months Ended	12 Months Ended
	Feb. 08, 2021 USD ($) shares	Jan. 31, 2021 USD ($) $ / shares	Jan. 31, 2019 $ / shares shares	Mar. 31, 2021 shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($) shares	Oct. 31, 2021 USD ($)	Mar. 11, 2021 USD ($)	Dec. 31, 2018 USD ($)
Subsequent Event [Line Items]
Proceeds from the sale of stock | $					$ 264,727	$ 24,825
Proceeds from sale of common stock | $					$ 257,472	23,829
Number of warrants issued					1,492,487
Number of warrants exercised					1,492,487
Value of shares registered | $					$ 277,071	$ 26,235			$ 4,491
Series B Preferred Stock [Member]
Subsequent Event [Line Items]
Conversion of stock shares converted into common stock						8,801
Leaving shares outstanding					2,199
Common Stock [Member]
Subsequent Event [Line Items]
Stock issued during period					1,492,487
Proceeds from sale of common stock | $					$ 2,900
Issuance of common stock shares exercised					1,492,487
Restricted Stock [Member]
Subsequent Event [Line Items]
Proceeds from the sale of stock | $					$ 450
Stock issued during period			150,000
Share price | $ / shares			$ 1.70
Restricted options granted					1,544,359	1,542,332
Restricted Stock [Member] | Subsequent to December 31, 2020 [Member]
Subsequent Event [Line Items]
Proceeds from the sale of stock | $					$ 300
Number of shares held to cover withholding taxes related to the settlement of restricted stock units					40,250
Warrant [Member]
Subsequent Event [Line Items]
Number of warrants issued					1,257,235
Number of warrants exercised					543,686
Warrant [Member] | Common Stock [Member]
Subsequent Event [Line Items]
Stock issued during period					415,657
Proceeds from sale of common stock | $					$ 800
Issuance of common stock shares exercised					415,657
H.C. Wainwright [Member] | Common Stock [Member] | 2019 ATM Offering [Member]
Subsequent Event [Line Items]
Proceeds from the sale of stock | $						$ 23,800
Stock issued during period					4,433,468	8,351,762
Value of shares registered | $					$ 200
Members of our board of directors and an employee of Company [Member] | Restricted Stock [Member]
Subsequent Event [Line Items]
Stock issued during period					2,048,096
Number of shares held to cover withholding taxes related to the settlement of restricted stock units					193,881
Members of our board of directors and an employee of Company [Member] | Restricted Stock [Member] | Subsequent to December 31, 2020 [Member]
Subsequent Event [Line Items]
Stock issued during period					242,645
Subsequent Event [Member]
Subsequent Event [Line Items]
Restricted options granted				41,440
Vesting period				1 year
Subsequent Event [Member] | Model S19j (90TH/s) Antminers [Member]
Subsequent Event [Line Items]
Number of computers acquired							1,500	1,500
Value of computers acquired | $							$ 3,600	$ 7,300
Subsequent Event [Member] | Executive Employment Agreement [Member] | Chief Executive Officer [Member]
Subsequent Event [Line Items]
Term of employment	Mr. Les has agreed to serve as the Company’s CEO for a five (5) year term, which renews for successive one (1) year terms after the expiration of the initial term.
Annual salary | $	$ 240,000
Number of bitcoins	ten (10) bitcoin
Restricted options granted	25,000
Vesting period	vest in four (4) equal quarterly installments
Subsequent Event [Member] | Executive Employment Agreement [Member] | Chief Financial Officer [Member]
Subsequent Event [Line Items]
Annual salary | $	$ 360,000
Restricted options granted	20,000
Vesting period	vest in four (4) equal quarterly installments.
Subsequent Event [Member] | H.C. Wainwright [Member]
Subsequent Event [Line Items]
Proceeds from the sale of stock | $		$ 84,800
Share price | $ / shares		$ 19.13