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Summary of Significant Accounting Policies Gross Loans Receivable (Tables)
12 Months Ended
Mar. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Gross loans receivable at March 31, 2020 and 2019 consisted of the following:
20202019
Small loans$761,364,753  $736,643,663  
Large loans442,683,915  383,686,372  
Tax advance loans5,822,698  7,627,348  
Total gross loans$1,209,871,366  $1,127,957,383