Finance Receivables - Information regarding delinquency rates with respect to contracts and direct loans (Details 4) - Finance receivables - USD ($) $ in Thousands	Sep. 30, 2022	Mar. 31, 2022	Sep. 30, 2021
Accounts Notes And Loans Receivable [Line Items]
Balance Outstanding	$ 175,126		$ 176,784
Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Balance Outstanding	27,377	$ 24,376	18,844
Total	$ 1,996	$ 881	$ 614
Total (in percentage)	7.29%	3.61%	3.26%
Contract Portfolio
Accounts Notes And Loans Receivable [Line Items]
Balance Outstanding	$ 147,749	$ 154,143	$ 157,940
Total	$ 16,597	$ 11,264	$ 11,938
Total (in percentage)	11.23%	7.31%	7.56%
30 - 59 days \| Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Total	$ 1,169	$ 607	$ 416
Total (in percentage)	4.27%	2.49%	2.21%
30 - 59 days \| Contract Portfolio
Accounts Notes And Loans Receivable [Line Items]
Total	$ 9,769	$ 7,097	$ 7,990
Total (in percentage)	6.61%	4.60%	5.06%
60 - 89 days \| Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Total	$ 517	$ 197	$ 145
Total (in percentage)	1.89%	0.81%	0.77%
60 - 89 days \| Contract Portfolio
Accounts Notes And Loans Receivable [Line Items]
Total	$ 4,492	$ 2,936	$ 2,905
Total (in percentage)	3.04%	1.90%	1.84%
90 - 119 days \| Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Total	$ 302	$ 77	$ 53
Total (in percentage)	1.10%	0.32%	0.28%
90 - 119 days \| Contract Portfolio
Accounts Notes And Loans Receivable [Line Items]
Total	$ 2,303	$ 1,183	$ 1,024
Total (in percentage)	1.56%	0.77%	0.65%
Over 120 days \| Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Total	$ 8
Total (in percentage)	0.03%
Over 120 days \| Contract Portfolio
Accounts Notes And Loans Receivable [Line Items]
Total	$ 33	$ 48	$ 19
Total (in percentage)	0.02%	0.03%	0.01%