Marathon Digital Holdings Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details Narrative)

Summary of Significant Accounting Policies (Details Narrative)				2 Months Ended	12 Months Ended
	Jan. 14, 2021 USD ($)	Jul. 22, 2019 $ / shares shares	Oct. 11, 2018 USD ($) $ / shares shares	Mar. 14, 2021	Dec. 31, 2020 USD ($) Integer $ / shares	Dec. 31, 2019 USD ($)	Jan. 02, 2019 USD ($)
Significant Accounting Policies [Line Items]
Equity method ownership description					The Company owns less than 100% of the subsidiary, the Company records net loss attributable to non-controlling interests in its consolidated statements of operations equal to the percentage of the economic or ownership interest retained in such entities by the respective non-controlling parties.
Fdic insured amount					$ 140,300,000	$ 200,000
Cash equivalents
Number of operating segment \| Integer					1
Miners description					Subject to the timely payment of the purchase price, Bitmain shall deliver products according to the following schedule: 1,500 Units on or before January 31, 2021; and 1,800 units on or before each of February 28, 2021; March 31, 2021; April 30, 2021, May 31, 2021 and June 30, 2021.
Estimated useful life of asset					17 years
Impairment of intangible assets
Vesting term		5 years
Outstanding warrant liability					$ 322,437
Implied stock price \| $ / shares					$ 0.90
Expected volatility rate		39.46%
Long lived assets net					$ 1,487,538
Impairment of crypto-currency machines					871,302
Impairment of leasehold improvements						447,776
Right of use assets					200,301	297,287	$ 388,425
Lease liability						120,479	289,283
Deferred rent							$ 99,141
Warrant [Member]
Significant Accounting Policies [Line Items]
Exercise price \| $ / shares					$ 4.80
Implied stock price \| $ / shares					$ 10.44
Expected volatility rate					44.47%
Expected dividend rate					0.00%
Risk free interest rate					1.70%
Expiration date					2 years 2 months 1 day
David Lieberman, James Crawford and Other Three Board Directors [Member]
Significant Accounting Policies [Line Items]
Stock option term		5 years
Option to purchase shares of common stock \| shares		200,000
Options exercise price per share \| $ / shares		$ 2.04
Options vesting percentage		50.00%
Fair value of options granted percentage		25.00%
Vesting term		6 months
2-Year Employment Agreement [Member] \| Merrick Okamoto [Member]
Significant Accounting Policies [Line Items]
Agreement term description			On October 11, 2018, the Company entered into a 2-year Employment Agreement, subject to successive 1 year extension.
Base salary			$ 350,000
Cost of annual salary increased, percentage			3.00%
Annual bonus percentage			100.00%
Stock option term			10 years
Option to purchase shares of common stock \| shares			1,250,000
Options exercise price per share \| $ / shares			$ 2.32
Options vesting percentage			50.00%
Fair value of options granted percentage			25.00%
Vesting term			6 months
2-Year Employment Agreement [Member] \| David Lieberman [Member]
Significant Accounting Policies [Line Items]
Accrued bonus payable
Subsequent Event [Member]
Significant Accounting Policies [Line Items]
Crypto-currency machines depreciation period				5 years
Subsequent Event [Member] \| Miners [Member]
Significant Accounting Policies [Line Items]
Sale of inventory	$ 616,236
Digital Currencies [Member]
Significant Accounting Policies [Line Items]
Miners description					The reward for a bitcoin miner changes roughly every four years, or after every 210,000 blocks are mined and gets reduced by half each time, this whole process is called bitcoin halving. The last halving occurred on May 11, 2020 and reduced the reward per block to 6.25 BTC.
Maximum [Member]
Significant Accounting Policies [Line Items]
Fdic insured amount					$ 250,000