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Summary of Significant Accounting Policies (Detail Textuals)	12 Months Ended
	Mar. 31, 2023 USD ($) Segment shares	Mar. 31, 2022 USD ($)
Significant Accounting Policies [Line Items]
Number of reportable segments | Segment	1
Adequate reserves	$ 1,400,000
Uncertain tax positions	$ 0	$ 0
Interest income accrual on finance receivables suspension condition	Accrual of interest income on finance receivables is suspended when a loan is contractually delinquent for 61 days or more, or the collateral is repossessed, whichever is earlier.
Average dealer discount associated with new volume	6.50%	6.90%
Anti-dilutive shares excluded from diluted per share | shares	10,000
Restricted Stock Unit (RSU) [Member]
Significant Accounting Policies [Line Items]
Unvested restricted shares | shares	12,010
Maximum [Member]
Significant Accounting Policies [Line Items]
Impact of ASU on allowance for credit losses	$ 1,900,000
Minimum [Member]
Significant Accounting Policies [Line Items]
Impact of ASU on allowance for credit losses	$ 900,000

X

- Definition

Represents accrual of interest income on finance receivables suspension condition.

+ References

No definition available.

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- Definition

adequate reserves

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Impact of Accounting Standards Update on Allowance for Credit Losses

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- Definition

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Line item represents significant accounting policies.

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8672-108599

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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Amount of unrecognized tax benefits.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-SubTopic 10
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