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Represent the maximum debt to adjusted EBITDA ratio pursuant the loan agreement.

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Represents the equity capital to total assets ratio pursuant the loan agreement.

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Represent the minimum equity capital pursuant the loan agreement.

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Number of repayment installments required under debt instrument.

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Amount of income recognized related to transferable production tax credits.

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Represents the amount of proceeds received during the period from payments on accounts receivable that were overdue.

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation.

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The amount of cash as of the balance sheet date that is not insured by the Federal Deposit Insurance Corporation.

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Face amount or stated value per share of common stock.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of the required periodic payments including both interest and principal payments.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amortized cost, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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The cash inflow from the additional capital contribution to the entity.

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Per share or per unit amount of equity securities issued.

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Number of new stock issued during the period.

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Note 1 - General and Basis of Presentation 1 (Details Textual) $ / shares in Units, $ in Thousands				1 Months Ended	3 Months Ended		12 Months Ended
	Apr. 03, 2023 $ / shares shares	Mar. 14, 2023 USD ($) $ / shares shares	Feb. 27, 2023 USD ($)	Apr. 30, 2023 USD ($)	Mar. 31, 2023 USD ($) $ / shares	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($) $ / shares
Common Stock, Par or Stated Value Per Share (in dollars per share) \| $ / shares		$ 0.001			$ 0.001		$ 0.001
Proceeds from Issuance of Common Stock					$ 297,121	$ 0
Cash, FDIC Insured Amount					171,300		$ 10,000
Cash, Uninsured Amount					128,700		64,300
Accounts Receivable, after Allowance for Credit Loss, Current					144,199		$ 128,818
Income Related to Transferable Production Tax Credits					1,800
Kenya Power and Lighting Co Limited [Member]
Accounts Receivable, Past Due					36,900
Kenya Power and Lighting Co Limited [Member] \| Subsequent Event [Member]
Proceeds, Overdue Accounts Receivable				$ 9,800
ENEE [Member]
Accounts Receivable, Past Due					$ 16,600
ENEE [Member] \| Subsequent Event [Member]
Proceeds, Overdue Accounts Receivable				$ 5,900
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Primary Customers [Member]
Concentration Risk, Percentage					59.00%		60.00%
Total Receivables [Member] \| Customer Concentration Risk [Member]
Financing Receivable, after Allowance for Credit Loss					$ 100,000		$ 89,800
Non-US [Member]
Accounts Receivable, after Allowance for Credit Loss, Current					$ 102,900		$ 78,900
Goldman Sachs & Co. LLC [Member]
Proceeds from Issuance of Common Stock		$ 341,700
Goldman Sachs & Co. LLC [Member] \| Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues (in shares) \| shares	540,000
Shares Issued, Price Per Share (in dollars per share) \| $ / shares	$ 82.60
Public Offering [Member] \| Goldman Sachs & Co. LLC [Member]
Stock Issued During Period, Shares, New Issues (in shares) \| shares		3,600,000
Shares Issued, Price Per Share (in dollars per share) \| $ / shares		$ 82.60
Over-Allotment Option [Member] \| Goldman Sachs & Co. LLC [Member]
Stock Issued During Period, Shares, New Issues (in shares) \| shares		540,000
BHI Loan Agreement [Member]
Debt Instrument, Face Amount			$ 100,000
Debt Instrument, Number of Repayment Installment			20
Debt Instrument, Periodic Payment			$ 5,000
Debt Instrument, Term (Year)			10 years
Debt Instrument, Interest Rate, Stated Percentage			6.45%
Debt Instrument, Covenant, Minimum Equity Capital			$ 750,000
BHI Loan Agreement [Member] \| Maximum [Member]
Debt Instrument, Covenant, Debt to Adjusted EBITDA Ratio			6.00%
BHI Loan Agreement [Member] \| Minimum [Member]
Debt Instrument, Covenant, Equity Capital to Total Assets Ratio			25.00%