Allowance For Loan Losses: Schedule of reconciliation of the allowance for loan losses (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Loans and Leases Receivable, Allowance, Beginning Balance	$ 12,551	$ 15,643	$ 19,921
Allowance for Loan and Lease Losses, Provision for (recapture of) Loss, Gross	(1,800)	(3,700)	900
Allowance for Loan and Lease Losses, Charge-offs	(464)	(1,106)	(6,926)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts	475	1,714	1,748
Loans and Leases Receivable, Allowance, Ending Balance	10,762	12,551	15,643
Commercial business
Loans and Leases Receivable, Allowance, Beginning Balance	2,409	2,128	2,688
Allowance for Loan and Lease Losses, Provision for (recapture of) Loss, Gross	(1,060)	95	928
Allowance for Loan and Lease Losses, Charge-offs	(120)	(340)	(1,606)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts	34	526	118
Loans and Leases Receivable, Allowance, Ending Balance	1,263	2,409	2,128
Commercial Real Estate
Loans and Leases Receivable, Allowance, Beginning Balance	5,269	5,979	5,599
Allowance for Loan and Lease Losses, Provision for (recapture of) Loss, Gross	(768)	(417)	1,865
Allowance for Loan and Lease Losses, Charge-offs	(233)	(316)	(1,494)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts		23	9
Loans and Leases Receivable, Allowance, Ending Balance	4,268	5,269	5,979
Land
Loans and Leases Receivable, Allowance, Beginning Balance	340	2,019	4,906
Allowance for Loan and Lease Losses, Provision for (recapture of) Loss, Gross	(72)	(2,439)	(2,149)
Allowance for Loan and Lease Losses, Charge-offs		(90)	(1,753)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts	271	850	1,015
Loans and Leases Receivable, Allowance, Ending Balance	539	340	2,019
Multi-Family
Loans and Leases Receivable, Allowance, Beginning Balance	203	541	1,121
Allowance for Loan and Lease Losses, Provision for (recapture of) Loss, Gross	145	(338)	(197)
Allowance for Loan and Lease Losses, Charge-offs			(622)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts			239
Loans and Leases Receivable, Allowance, Ending Balance	348	203	541
Real estate construction
Loans and Leases Receivable, Allowance, Beginning Balance	387	221	412
Allowance for Loan and Lease Losses, Provision for (recapture of) Loss, Gross	382	173	(278)
Allowance for Loan and Lease Losses, Charge-offs		(11)	(141)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts		4	228
Loans and Leases Receivable, Allowance, Ending Balance	769	387	221
Consumer
Loans and Leases Receivable, Allowance, Beginning Balance	2,653	2,949	3,274
Allowance for Loan and Lease Losses, Provision for (recapture of) Loss, Gross	(164)	(258)	846
Allowance for Loan and Lease Losses, Charge-offs	(111)	(349)	(1,310)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts	170	311	139
Loans and Leases Receivable, Allowance, Ending Balance	2,548	2,653	2,949
Unallocated
Loans and Leases Receivable, Allowance, Beginning Balance	1,290	1,806	1,921
Allowance for Loan and Lease Losses, Provision for (recapture of) Loss, Gross	(263)	(516)	(115)
Loans and Leases Receivable, Allowance, Ending Balance	$ 1,027	$ 1,290	$ 1,806

Reflects the gross amount charged against earnings during the period as credit losses (bad debt expense) based on review of the loan and lease portfolio and application of the methodology for estimating credit losses.

No definition available.

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- Definition

Reflects a reduction in bad debt expense attributable to collections of loans and lease receivables which had previously been fully or partially charged off as bad debts.

+ References

No definition available.

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- Definition

Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

+ References

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7(d))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (b)(1)(ii)

-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section L

-Subsection 1

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