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LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES - Additional Information (Detail)				9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 30, 2015	Sep. 30, 2016 USD ($) note
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans that are deemed impaired, number of days past due (more than)				90 days
Number of notes split | note				2
Appraisals, required period interval				18 months
Minimum amount on which annual updated appraisals for classified loans is required | $				$ 250,000
Look-back period for historical losses		4 years	3 years
Look-back, loss history weight, most recent 12 months			50.00%
Look-back, loss history weight, 2 years ago			25.00%
Look-back, loss history weight, 3 years ago			25.00%
Forecast
Financing Receivable, Allowance for Credit Losses [Line Items]
Look-back period for historical losses	5 years
Maximum
Financing Receivable, Allowance for Credit Losses [Line Items]
Percentage of loan-to-value ratio upon loan origination				80.00%
Percentage of loan-to-value ratios of the value of the real estate taken as collateral				90.00%
Percentage of credit worthiness of the borrower				43.00%
Percentage of strong loan-to-value				70.00%
Historical loss percentage adjustment to anticipated loss allocation		1.50%		1.50%
Minimum
Financing Receivable, Allowance for Credit Losses [Line Items]
Historical loss percentage adjustment to anticipated loss allocation		(1.50%)		(1.50%)

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Loans And Leases Receivable, Look-back Period, Loss History Weight, Previous Twelve Months

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Loans And Leases Receivable, Look-back Period, Loss History Weight, Previous Year Three

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Percentage of credit worthiness of the borrower.

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Percentage of loan to value ratio of value of real estate taken as collateral.

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Percentage of loan to value ratio upon loan origination.

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Percentage of strong loan to value.

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Valuation Allowances and Reserves, Assumptions, Loss Percentage, Historical

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