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Allowance for Loan Losses: Schedule of reconciliation of the allowance for loan losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Loans and Leases Receivable, Allowance, Beginning Balance | $ 9,960 | $ 10,337 | $ 9,885 | $ 10,762
Provision for Loan and Lease Losses |  | (300) |  | (800)
Allowance for Loan and Lease Losses, Write-offs | (71) | (59) | (115) | (73)
Allowance for Loan and Lease Loss, Recovery of Bad Debts | 174 | 135 | 293 | 224
Loans and Leases Receivable, Allowance, Ending Balance | 10,063 | 10,113 | 10,063 | 10,113
Commercial business |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Loans and Leases Receivable, Allowance, Beginning Balance | 902 | 1,469 | 1,048 | 1,263
Provision for Loan and Lease Losses | 1 | (115) | (149) | 79
Allowance for Loan and Lease Loss, Recovery of Bad Debts | 6 | 6 | 10 | 18
Loans and Leases Receivable, Allowance, Ending Balance | 909 | 1,360 | 909 | 1,360
Commercial Real Estate |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Loans and Leases Receivable, Allowance, Beginning Balance | 4,473 | 4,246 | 4,273 | 4,268
Provision for Loan and Lease Losses | 216 | 47 | 414 | 25
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  |  | 2 |
Loans and Leases Receivable, Allowance, Ending Balance | 4,689 | 4,293 | 4,689 | 4,293
Land |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Loans and Leases Receivable, Allowance, Beginning Balance | 312 | 502 | 325 | 539
Provision for Loan and Lease Losses | (264) | (74) | (359) | (172)
Allowance for Loan and Lease Loss, Recovery of Bad Debts | 106 | 62 | 188 | 123
Loans and Leases Receivable, Allowance, Ending Balance | 154 | 490 | 154 | 490
Multi-Family |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Loans and Leases Receivable, Allowance, Beginning Balance | 671 | 219 | 712 | 348
Provision for Loan and Lease Losses | (58) | 275 | (99) | 146
Loans and Leases Receivable, Allowance, Ending Balance | 613 | 494 | 613 | 494
Real estate construction |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Loans and Leases Receivable, Allowance, Beginning Balance | 565 | 622 | 416 | 769
Provision for Loan and Lease Losses | 162 | (342) | 311 | (489)
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  | 6 |  | 6
Loans and Leases Receivable, Allowance, Ending Balance | 727 | 286 | 727 | 286
Consumer Member |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Loans and Leases Receivable, Allowance, Beginning Balance | 2,327 | 2,354 | 2,403 | 2,548
Provision for Loan and Lease Losses | (28) | (27) | (91) | (223)
Allowance for Loan and Lease Losses, Write-offs | (71) | (59) | (115) | (73)
Allowance for Loan and Lease Loss, Recovery of Bad Debts | 62 | 61 | 93 | 77
Loans and Leases Receivable, Allowance, Ending Balance | 2,290 | 2,329 | 2,290 | 2,329
Unallocated |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Loans and Leases Receivable, Allowance, Beginning Balance | 710 | 925 | 708 | 1,027
Provision for Loan and Lease Losses | (29) | (64) | (27) | (166)
Loans and Leases Receivable, Allowance, Ending Balance | $ 681 | $ 861 | $ 681 | $ 861

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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
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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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 Reference 2: 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 + Details
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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 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 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=66008989&loc=SL6953423-111524 Reference 3: 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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 Reference 5: 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 + Details
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- Definition Amount of expense related to estimated loss from loan and lease transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
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