INCOME TAXES (Details) - USD ($)	6 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2024	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	May 31, 2019
Operating Loss Carryforwards [Line Items]
Investment tax credit, solar property						30.00%		30.00%
Income tax expense (benefit), solar investment tax credit, net of deferred taxes								$ (10,000,000)
Unrecognized tax benefits	$ 4,900,000	$ 0
Forecasted effective tax rate	0.50%	(5.80%)
Tax credit carryforwards expected, net	$ 43,100,000						$ 45,200,000
Discrete adjustments, amount	$ 2,700,000	$ 1,300,000
Effective income tax	(1.10%)	(6.60%)
ITC carryforward	$ 171,300,000						154,200,000
Effective term	20 years
Deferred tax assets, operating loss carryforwards, domestic	$ 24,100,000
Deferred tax assets, operating loss carryforwards, domestic, refundable and receivables	22,800,000						22,800,000
Valuation allowance	4,000,000						4,000,000
Scenario, Forecast
Operating Loss Carryforwards [Line Items]
Investment tax credit, solar property			10.00%	22.00%	26.00%
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	134,000,000						134,000,000
State
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 340,200,000						$ 340,200,000
State | Minimum
Operating Loss Carryforwards [Line Items]
Effective term	7 years
State | Maximum
Operating Loss Carryforwards [Line Items]
Effective term	20 years