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Loan Receivable and Allowance for Loan and Lease Losses Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Mar. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses | $ 4,107 | $ 7,066 | $ 4,477 | $ 7,233 | $ 7,233
Charge-off | 283 | 0 | 864 | 83 | 1,286
Recoveries | 105 | 244 | 198 | 941 | 1,540
Provision for loan losses | 643 | (713) | 761 | (1,494) | (3,010)
Allowance for loan losses | 4,572 | 6,597 | 4,572 | 6,597 | 4,477
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 4,375 | 4,610 | 4,375 | 4,610 | 3,921
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 197 | 1,987 | 197 | 1,987 | 556
Loans Receivable Ending Balance | 562,771 | 410,435 | 562,771 | 410,435 | 483,193
Financing Receivable, Collectively Evaluated for Impairment | 547,072 | 393,419 | 547,072 | 393,419 | 466,681
Financing Receivable, Individually Evaluated for Impairment | 15,699 | 17,016 | 15,699 | 17,016 | 16,512
One- to four family loans [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses | 1,659 | 3,923 | 1,989 | 3,377 | 3,377
Charge-off | (13) | 0 | (243) | (83) | (687)
Recoveries | 1 | 25 | 1 | 379 | 380
Provision for loan losses | (52) | (647) | (152) | (372) | (1,081)
Allowance for loan losses | 1,595 | 3,301 | 1,595 | 3,301 | 1,989
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 1,498 | 2,110 | 1,498 | 2,110 | 1,702
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 97 | 1,191 | 97 | 1,191 | 287
Loans Receivable Ending Balance | 128,855 | 119,142 | 128,855 | 119,142 | 126,527
Financing Receivable, Collectively Evaluated for Impairment | 121,925 | 112,350 | 121,925 | 112,350 | 119,480
Financing Receivable, Individually Evaluated for Impairment | 6,930 | 6,792 | 6,930 | 6,792 | 7,047
Multifamily Loans [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses | 525 | 336 | 534 | 308 | 308
Charge-off | (3) | 0 | (241) | 0 | 0
Recoveries | 0 | 74 | 0 | 82 | 83
Provision for loan losses | 51 | (38) | 280 | (18) | 143
Allowance for loan losses | 573 | 372 | 573 | 372 | 534
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 573 | 201 | 573 | 201 | 353
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 0 | 171 | 0 | 171 | 181
Loans Receivable Ending Balance | 109,287 | 54,098 | 109,287 | 54,098 | 94,706
Financing Receivable, Collectively Evaluated for Impairment | 108,046 | 52,606 | 108,046 | 52,606 | 93,218
Financing Receivable, Individually Evaluated for Impairment | 1,241 | 1,492 | 1,241 | 1,492 | 1,488
Commercial Real Estate [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses | 1,032 | 813 | 1,029 | 1,835 | 1,835
Charge-off | 0 | 0 | 0 | 0 | 0
Recoveries | 3 | 53 | 3 | 254 | 256
Provision for loan losses | 401 | 288 | 404 | (935) | (1,062)
Allowance for loan losses | 1,436 | 1,154 | 1,436 | 1,154 | 1,029
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 1,436 | 1,149 | 1,436 | 1,149 | 953
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 0 | 5 | 0 | 5 | 76
Loans Receivable Ending Balance | 242,707 | 190,573 | 242,707 | 190,573 | 185,851
Financing Receivable, Collectively Evaluated for Impairment | 240,845 | 186,324 | 240,845 | 186,324 | 183,230
Financing Receivable, Individually Evaluated for Impairment | 1,862 | 4,249 | 1,862 | 4,249 | 2,621
Construction Loans [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses | 99 | 201 | 99 | 0 | 0
Charge-off | 0 | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0 | 0
Provision for loan losses | 0 | 13 | 0 | 214 | 99
Allowance for loan losses | 99 | 214 | 99 | 214 | 99
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 99 | 214 | 99 | 214 | 99
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 0 | 0 | 0 | 0 | 0
Loans Receivable Ending Balance | 5,067 | 5,075 | 5,067 | 5,075 | 5,076
Financing Receivable, Collectively Evaluated for Impairment | 5,067 | 5,075 | 5,067 | 5,075 | 5,076
Financing Receivable, Individually Evaluated for Impairment | 0 | 0 | 0 | 0 | 0
Business [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses | 791 | 1,780 | 813 | 1,705 | 1,705
Charge-off | (8) | 0 | (120) | 0 | (320)
Recoveries | 95 | 90 | 188 | 223 | 816
Provision for loan losses | (35) | (335) | (38) | (393) | (1,388)
Allowance for loan losses | 843 | 1,535 | 843 | 1,535 | 813
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 743 | 916 | 743 | 916 | 801
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 100 | 619 | 100 | 619 | 12
Loans Receivable Ending Balance | 76,766 | 41,194 | 76,766 | 41,194 | 70,599
Financing Receivable, Collectively Evaluated for Impairment | 71,100 | 36,721 | 71,100 | 36,721 | 65,243
Financing Receivable, Individually Evaluated for Impairment | 5,666 | 4,473 | 5,666 | 4,473 | 5,356
Consumer Loan [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Allowance for loan losses | 1 | 13 | 13 | 8 | 8
Charge-off | (259) | 0 | (260) | 0 | (279)
Recoveries | 6 | 2 | 6 | 3 | 5
Provision for loan losses | 278 | 6 | 267 | 10 | 279
Allowance for loan losses | 26 | 21 | 26 | 21 | 13
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 26 | 20 | 26 | 20 | 13
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 0 | 1 | 0 | 1 | 0
Loans Receivable Ending Balance | 89 | 353 | 89 | 353 | 434
Financing Receivable, Collectively Evaluated for Impairment | 89 | 343 | 89 | 343 | 434
Financing Receivable, Individually Evaluated for Impairment | $ 0 | $ 10 | $ 0 | $ 10 | $ 0

X
- 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=49124121&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 The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + 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=49124121&loc=SL6953423-111524 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + 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=49124121&loc=SL6953423-111524 + Details
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- Definition Amount of recovery of financing receivables doubtful of collection that were previously charged off. + 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=49124121&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were collectively evaluated for impairment. + 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 (h) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were individually evaluated for impairment. + 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 (h) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + 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=49124121&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=49124121&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 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 + Details
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- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes 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 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5074-111524 + Details
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