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ALLOWANCE FOR LOAN LOSSES (Assessment of Credit Quality) (Details) - USD ($) | 9 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Mar. 31, 2018
Financing Receivable, Recorded Investment [Line Items] |  |  |
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment | $ 46,300,000 | $ 42,100,000 |
Gross loan balance | 1,258,907,905 | 1,127,419,381 | $ 1,004,233,159
Consumer loans- non-bankrupt accounts [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Gross loan balance | 1,252,645,902 | 1,121,591,353 | 998,299,051
Consumer loans- bankrupt accounts [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Gross loan balance | 6,262,003 | 5,828,028 | 5,934,108
Performing Financing Receivable [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Gross loan balance | 1,164,459,600 | 1,044,690,133 | 929,400,862
Nonperforming Financial Instruments [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest | 94,448,305 | 82,729,248 | 74,832,297
New borrower [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Gross loan balance | 175,727,060 | 126,446,949 |
New borrower [Member] | New borrower [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Gross loan balance |  |  | 104,762,628
Former borrower [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Gross loan balance | 144,840,392 | 131,195,579 |
Former borrower [Member] | Former borrower [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Gross loan balance |  |  | 104,281,551
Refinance [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Gross loan balance | 917,868,854 | 850,626,372 |
Refinance [Member] | Refinance [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Gross loan balance |  |  | 778,115,097
Delinquent refinance [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Gross loan balance | $ 20,471,599 | $ 19,150,481 |
Delinquent refinance [Member] | Delinquent refinance [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Gross loan balance |  |  | $ 17,073,883

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