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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
	Jun. 30, 2017	Jun. 30, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	$ 10,330	$ 13,961
Interest Recognized on Impaired Loans	88	138
Commercial Business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	704	191
Interest Recognized on Impaired Loans	20	2
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	5,674	9,649
Interest Recognized on Impaired Loans	30	97
Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	796	801
Interest Recognized on Impaired Loans
Multi-Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	1,686	1,726
Interest Recognized on Impaired Loans	23	23
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	1,470	1,594
Interest Recognized on Impaired Loans	$ 15	$ 16

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- Definition

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+ References

No definition available.

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- Definition

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=84173941&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=84173941&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=84173941&loc=d3e5212-111524

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