CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Total revenue	$ 52,400,000	$ 23,871,000
Cost of revenue	23,858,000	16,357,000
Gross profit	28,542,000	7,514,000
Operating expenses
Research and development	2,041,000	1,849,000
Selling and marketing	7,773,000	1,177,000
General and administrative	36,686,000	12,521,000
Benefit for credit losses		(2,000,000)
Impairment of mined cryptocurrency	403,000
Total operating expenses	46,903,000	13,547,000
Loss from continuing operations	(18,361,000)	(6,033,000)
Other income (expenses)
Interest income	808,000	105,000
Impairment of debt securities, net	(5,090,000)
Interest expense	(1,871,000)	(9,648,000)
Change in fair value of marketable equity securities	(1,327,000)	919,000
Realized gain on marketable securities	1,924,000
Loss from equity investment	(311,000)
Gain (loss) on extinguishment of debt	929,000	(18,706,000)
Change in fair value of warrant liability	(542,000)	(49,000)
Total other income (expenses), net	(5,480,000)	(27,379,000)
Loss from continuing operations before income taxes	(23,841,000)	(33,412,000)
Income tax (provision) benefit	(130,000)	24,000
Net loss from continuing operations	(23,971,000)	(33,388,000)
Net income from discontinued operations, net of taxes		661,000
Net loss	(23,971,000)	(32,727,000)
Net loss attributable to non-controlling interest	(213,000)
Net loss attributable to BitNile Holdings	(24,184,000)	(32,727,000)
Preferred dividends	(18,000)	(18,000)
Net loss available to common stockholders	$ (24,202,000)	$ (32,745,000)
Basic and diluted net income (loss) per common share:
Continuing operations	$ (0.44)	$ (3.48)
Discontinued operations		0.07
Net loss per common share	$ (0.44)	$ (3.41)
Weighted average common shares outstanding, basic and diluted	55,444,000	9,606,000
Other comprehensive income (loss)
Foreign currency translation adjustment	$ 85,000	$ 482,000
Net unrealized gain (loss) on derivative securities of related party	(7,773,000)	3,312,000
Other comprehensive income	1,612,000	3,794,000
Total comprehensive loss	(22,590,000)	(28,951,000)
Revenue [Member]
Total revenue	32,096,000	23,629,000
Revenue Cryptocurrency Mining [Member]
Total revenue	3,450,000
Lending And Trading Activities [Member]
Total revenue	$ 16,854,000	$ 242,000