NOTES PAYABLE - Summary of Notes Payable (Detail) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2021	Dec. 31, 2020
Less: Current portion	$ (17,994)	$ (3,273)
Total	7,369	1,364
Equipment Finance Agreement [Member]
Notes Payable	25,363	4,637
Less: Current portion	(17,994)	(3,273)
Total	7,369	1,364
Miner Equipment Note A [Member] \| Equipment Finance Agreement [Member]
Notes Payable	$ 1,992	4,233
Loan Date	Dec. 31, 2020
Maturity Date	Jun. 30, 2022
Interest Rate	17.00%
Initial Financing	$ 4,482
Miner Equipment Note B [Member] \| Equipment Finance Agreement [Member]
Notes Payable	$ 166	404
Loan Date	Dec. 31, 2020
Maturity Date	Jun. 30, 2022
Interest Rate	17.00%
Initial Financing	$ 428
Miner Equipment Note C [Member] \| Equipment Finance Agreement [Member]
Notes Payable	$ 1,733	0
Loan Date	Mar. 31, 2021
Maturity Date	Nov. 30, 2022
Interest Rate	17.00%
Initial Financing	$ 2,229
Miner Equipment Note D [Member] \| Equipment Finance Agreement [Member]
Notes Payable	$ 3,343	0
Loan Date	Apr. 30, 2021
Maturity Date	Dec. 31, 2022
Interest Rate	17.00%
Initial Financing	$ 4,012
Miner Equipment Note E And H [Member] \| Equipment Finance Agreement [Member]
Notes Payable	$ 11,751	0
Loan Date	May 31, 2021
Maturity Date	Oct. 31, 2023
Interest Rate	15.00%
Initial Financing	$ 12,080
Miner Equipment Note I [Member] \| Equipment Finance Agreement [Member]
Notes Payable	$ 3,962	0
Loan Date	Jul. 31, 2021
Maturity Date	Jan. 31, 2023
Interest Rate	17.00%
Initial Financing	$ 4,457
Miner Equipment Note J [Member] \| Equipment Finance Agreement [Member]
Notes Payable	$ 2,415	$ 0
Loan Date	Jul. 31, 2021
Maturity Date	Mar. 31, 2023
Interest Rate	17.00%
Initial Financing	$ 2,701

Face (par) amount of debt instrument at time of issuance.

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