Fair Value Disclosures - Summary of financial instruments not measured at fair value (Details 1) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and restricted cash	$ 678	$ 454
Finance receivables	93,854	106,919
Repossessed assets	1,953	1,491
Credit Facility	15,250	29,100
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and restricted cash	678	454
Finance receivables	93,854	105,971
Repossessed assets	1,953	1,491
Credit Facility	15,250	29,100
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and restricted cash	678	454
Finance receivables	0	0
Repossessed assets	0	0
Credit Facility	0	0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and restricted cash	0	0
Finance receivables	0	0
Repossessed assets	0	0
Credit Facility	0	0
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and restricted cash	0	0
Finance receivables	93,854	105,971
Repossessed assets	1,953	1,491
Credit Facility	$ 15,250	$ 29,100