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ALLOWANCE FOR LOAN LOSSES: Schedule of Impaired Loans, Average Recorded Investment and Interest Recognized (Details 5) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	$ 12,902	$ 17,422	$ 13,431	$ 19,276
Interest Recognized on Impaired Loans	113	142	394	509
Commercial Business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	298	405	244	630
Interest Recognized on Impaired Loans	2	2	10	15
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	8,607	12,617	9,128	13,962
Interest Recognized on Impaired Loans	72	98	267	364
Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	801	801	801	801
Interest Recognized on Impaired Loans
Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	1,704	1,821	1,715	1,869
Interest Recognized on Impaired Loans	23	24	70	76
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	1,492	1,778	1,543	2,014
Interest Recognized on Impaired Loans	$ 16	$ 18	$ 47	$ 54

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5258-111524

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Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524

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