Quarterly report pursuant to Section 13 or 15(d)

Term Note Payable (Details)

Term Note Payable (Details)							3 Months Ended		6 Months Ended
Term Note Payable (Details)	Oct. 03, 2023	Sep. 22, 2023 USD ($)	Aug. 16, 2023 USD ($)	Jul. 06, 2023 USD ($) item	Oct. 01, 2020 USD ($) MW	Feb. 04, 2019 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Apr. 21, 2023 USD ($)	Apr. 05, 2023 USD ($)	Mar. 13, 2023 USD ($)	Jul. 13, 2022 USD ($)	Apr. 01, 2022 USD ($)	May 12, 2021 USD ($) MW
Term Note Payable
Term of loan	3 years
Liabilities subject to compromise							$ 56,954,000		$ 56,954,000
Amortization of debt issuance costs									29,000	$ 51,000
Term Note Payable \| Senior Notes [Member]
Term Note Payable
Term of loan						3 years
Debt instrument, issuance date						Feb. 04, 2019
Aggregate principal amount						$ 30,000,000.0
Interest rate (as a percent)						13.00%
Debt instrument, frequency of periodic payment						quarterly
Interest expense, debt							1,800,000	$ 1,300,000	3,500,000	$ 2,600,000
Term Note Payable, Amended and Restated Note Purchase Agreement \| Senior Notes [Member]
Term Note Payable
Debt instrument, issuance date					Oct. 01, 2020
Aggregate principal amount				$ 50,000,000
Proceeds from Issuance of Debt		$ 3,000,000			$ 20,000,000
Long-term debt					$ 50,000,000.0
Variable interest rate basis spread (as a percent)		8.75%			8.75%
Number of designated board observer to attend board meetings \| item				1
Debt instrument, covenants, minimum consolidated liquidity			$ 3,500,000		$ 9,000,000.0								$ 9,000,000.0		$ 9,000,000.0	$ 12,200,000
Commencement period of transaction support agreement				30 days
Satisfactory term of collateral agent			30 days	45 days
Term of payment of professional fees				30 days
Professional fee payable				$ 2,000,000
Debt instrument, covenants, minimum power of Rental Fleet by 9-month anniversary of Closing Date \| MW					6.25
Debt instrument, covenants, minimum power of Rental Fleet by 18-month anniversary of Closing Date \| MW					12.50											12.50
Requirements to use commercially reasonable best efforts to raise at least financing through a sale of common stock by September 14, 2022														$ 10,000,000.0
Amount of minimum consolidated liquidity covenant breached											$ 9,000,000.0
Fee payable on principal balance (as percentage)				1.00%
Debt Instrument commencement period of interest payment			30 days	30 days
Liabilities subject to compromise							$ 57,000,000.0		$ 57,000,000.0
Term Note Payable, Amended and Restated Note Purchase Agreement \| Senior Notes [Member] \| Scenario One
Term Note Payable
Debt instrument, covenants, minimum consolidated liquidity				$ 4,000,000.0
Term Note Payable, Amended and Restated Note Purchase Agreement \| Senior Notes [Member] \| Scenario Two
Term Note Payable
Debt instrument, covenants, minimum consolidated liquidity				4,500,000
Term Note Payable, Amended and Restated Note Purchase Agreement \| Senior Notes [Member] \| Scenario Three
Term Note Payable
Debt instrument, covenants, minimum consolidated liquidity				$ 6,000,000.0
Term Note Payable, Amended and Restated Note Purchase Agreement \| Senior Notes [Member] \| Funds Held in Wells Fargo Bank
Term Note Payable
Amount of cash and cash equivalents transferred												$ 9,000,000.0	$ 9,000,000.0
Term Note Payable, Amended and Restated Note Purchase Agreement \| Senior Notes [Member] \| Minimum [Member]
Term Note Payable
Debt instrument, covenants, minimum power of Rental Fleet by 9-month anniversary of Closing Date \| MW																2.00