Quarterly report pursuant to Section 13 or 15(d)

Term Note Payable - Three-Year Term Note - General Information (Details)

Term Note Payable - Three-Year Term Note - General Information (Details) $ in Thousands					3 Months Ended		6 Months Ended
	Aug. 24, 2022 USD ($)	Jun. 22, 2021 USD ($)	Oct. 01, 2020 USD ($)	Feb. 04, 2019 USD ($)	Sep. 30, 2022 USD ($) MW	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) MW	Sep. 30, 2021 USD ($)	Jul. 13, 2022 USD ($)	Mar. 31, 2022 USD ($)	May 13, 2021 USD ($) MW	May 12, 2021 USD ($) MW
Term Note Payable
Interest expenses					$ 1,356	$ 1,278	$ 2,718	$ 2,513
Amortization of debt issuance costs							51	17
Over-Allotment Option
Term Note Payable
Net proceeds of public stock offering	$ 7,300	$ 10,500
Term Note Payable \| Senior Notes
Term Note Payable
Term of loan				3 years
Long-term debt					51,000		51,000
Requirements to use commercially reasonable best efforts to raise at least financing through a sale of common stock by September 14, 2022	$ 10,000
Debt discount and debt issuance costs, net					100		100
Amortization of the debt discount and debt issuance costs							9
Interest expenses					1,400	1,300	2,700	2,500
Amortization of debt issuance costs					9	$ 9	17	$ 17
Term Note Payable, Note Purchase Agreement \| Senior Notes
Term Note Payable
Debt instrument, issuance date				Feb. 04, 2019
Aggregate principal amount				$ 30,000
Interest rate (as a percent)				13.00%
Debt instrument, frequency of periodic payment				quarterly
Term Note Payable, Amended and Restated Note Purchase Agreement \| Senior Notes
Term Note Payable
Debt instrument, issuance date			Oct. 01, 2020
Proceeds from Issuance of Debt			$ 20,000
Long-term debt			$ 50,000
Debt instrument, covenants, minimum consolidated liquidity					$ 9,000		$ 9,000			$ 9,000	$ 12,200	$ 9,000
Debt instrument, covenants, minimum power of Rental Fleet by 9-month anniversary of Closing Date \| MW					6.25		6.25				2.00	6.25
Debt instrument, covenants, minimum power of Rental Fleet by 18-month anniversary of Closing Date \| MW					12.50		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
Term Note Payable, Amended and Restated Note Purchase Agreement \| Senior Notes \| London Interbank Offered Rate (LIBOR)
Term Note Payable
Interest rate (as a percent)			8.75%