SUBSEQUENT EVENTS (Details)			1 Months Ended		2 Months Ended	9 Months Ended
	Mar. 28, 2022 USD ($) shares	Dec. 07, 2021 USD ($) item	Mar. 31, 2022 USD ($) item	Feb. 28, 2021	Mar. 31, 2021 USD ($) $ / shares	Dec. 31, 2021 USD ($) $ / shares	Feb. 28, 2022 USD ($) $ / shares
Subsequent Event [Line Items]
Common stock par value | $ / shares					$ 0.001	$ 0.001
Net proceeds from sale of shares					$ 29,942,000	$ 74,376,000
Agreement Term Period				10 years
Second Bitmain Purchase Agreement
Subsequent Event [Line Items]
Payment of deposit		$ 11,400,000				$ 12,100,000
Number miners purchases covered by the agreement | item		3,000
Subsequent Events
Subsequent Event [Line Items]
Common stock par value | $ / shares							$ 0.001
Aggregate offering price							$ 200,000,000.0
Preferred Stock Cumulative Dividend Rate			10.00%
Preferred Stock conversion ration to Common Stock per $1,000 preference			100
Conversion denomination			$ 1,000
Subsequent Events | Common Stock
Subsequent Event [Line Items]
Net proceeds from sale of shares			5,000,000
Subsequent Events | Series A Convertible Preferred Stock
Subsequent Event [Line Items]
Net proceeds from sale of shares			10,000,000
Subsequent Events | ATM Offering [Member]
Subsequent Event [Line Items]
Shares sold (in shares) | shares	521,390
Net proceeds from sale of shares	$ 4,300,000		$ 3,000,000
Subsequent Events | Second Bitmain Purchase Agreement
Subsequent Event [Line Items]
Number miners purchases covered by the agreement | item			2,500