DESCRIPTION OF BUSINESS (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Product Information [Line Items]
Total revenue	$ 32,826,000	$ 13,245,000
Cost of revenue	10,494,000	5,108,000
Gross profit	22,332,000	8,137,000
Operating expenses
Research and development	695,000	602,000
Selling and marketing	6,481,000	1,242,000
General and administrative	13,687,000	5,092,000
Total operating expenses	21,302,000	6,936,000
Income from operations	1,030,000	1,201,000
Other income (expenses)
Interest and other income	449,000	37,000
Change in fair value of equity securities, related party		2,969,000
Interest expense	(29,824,000)	(314,000)
Change in fair value of marketable equity securities		1,960,000
Realized gain on marketable securities	109,000	397,000
Gain (loss) on extinguishment of debt		482,000
Change in fair value of warrant liability	(18,000)	(679,000)
Total other (expenses) income, net	(29,817,000)	4,852,000
(Loss) income before income taxes	(28,787,000)	6,053,000
Income tax (provision) benefit		(6,000)
Net (loss) income	(28,787,000)	6,047,000
Net loss (income) attributable to non-controlling interest	15,000	(1,081,000)
Net (loss) income attributable to BitNile Holdings, Inc.	(28,772,000)	4,966,000
Preferred dividends	(5,000)	(4,000)
Net (loss) income available to common stockholders	$ (28,777,000)	$ 4,962,000
Basic net (loss) income per common share	$ (0.32)	$ 0.13
Diluted net (loss) income per common share	$ (0.32)	$ 0.12
Weighted average basic common shares outstanding	90,971,000	39,256,000
Weighted average diluted common shares outstanding	90,971,000	40,202,000
Other comprehensive income (loss)
Foreign currency translation adjustment	$ (287,000)	$ (93,000)
Net unrealized gain on derivative securities of related party
Other comprehensive (loss) income	(287,000)	(93,000)
Total comprehensive (loss) income	(29,064,000)	4,869,000
Revenue [Member]
Product Information [Line Items]
Total revenue	8,659,000	7,905,000
Revenue Cryptocurrency Mining [Member]
Product Information [Line Items]
Total revenue	3,548,000	130,000
Lending And Trading Activities [Member]
Product Information [Line Items]
Total revenue	$ 17,921,000	5,210,000
Previously Reported [Member]
Product Information [Line Items]
Total revenue		13,245,000
Cost of revenue		5,108,000
Gross profit		8,137,000
Operating expenses
Research and development		602,000
Selling and marketing		1,242,000
General and administrative		5,092,000
Total operating expenses		6,936,000
Income from operations		1,201,000
Other income (expenses)
Interest and other income		37,000
Change in fair value of equity securities, related party
Interest expense		(314,000)
Change in fair value of marketable equity securities		1,960,000
Realized gain on marketable securities		397,000
Gain (loss) on extinguishment of debt		482,000
Change in fair value of warrant liability		(679,000)
Total other (expenses) income, net		1,883,000
(Loss) income before income taxes		3,084,000
Income tax (provision) benefit		(6,000)
Net (loss) income		3,078,000
Net loss (income) attributable to non-controlling interest		(1,081,000)
Net (loss) income attributable to BitNile Holdings, Inc.		1,997,000
Preferred dividends		(4,000)
Net (loss) income available to common stockholders		$ 1,993,000
Basic net (loss) income per common share		$ 0.05
Diluted net (loss) income per common share		$ 0.05
Weighted average basic common shares outstanding		39,256,000
Weighted average diluted common shares outstanding		40,202,000
Other comprehensive income (loss)
Foreign currency translation adjustment		$ (93,000)
Net unrealized gain on derivative securities of related party		2,969,000
Other comprehensive (loss) income		2,876,000
Total comprehensive (loss) income		4,869,000
Previously Reported [Member] | Revenue [Member]
Product Information [Line Items]
Total revenue		7,905,000
Previously Reported [Member] | Revenue Cryptocurrency Mining [Member]
Product Information [Line Items]
Total revenue		130,000
Previously Reported [Member] | Lending And Trading Activities [Member]
Product Information [Line Items]
Total revenue		5,210,000
Revision of Prior Period, Adjustment [Member]
Product Information [Line Items]
Total revenue
Gross profit
Operating expenses
Total operating expenses
Other income (expenses)
Change in fair value of equity securities, related party		2,969,000
Total other (expenses) income, net		2,969,000
(Loss) income before income taxes		2,969,000
Net (loss) income		2,969,000
Net (loss) income attributable to BitNile Holdings, Inc.		2,969,000
Net (loss) income available to common stockholders		2,969,000
Other comprehensive income (loss)
Net unrealized gain on derivative securities of related party		(2,969,000)
Other comprehensive (loss) income		(2,969,000)
Total comprehensive (loss) income
Revision of Prior Period, Adjustment [Member] | Revenue Cryptocurrency Mining [Member]
Product Information [Line Items]
Total revenue