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INVESTMENT SECURITIES (Summary of Maturities of Debt Securities and Mortgage-backed Securities Held to Maturity) (Details) - USD ($) $ in Thousands | Jun. 30, 2016 | Sep. 30, 2015
--- | --- | ---
Held to maturity securities |  |
Amortized cost | $ 55,391 | $ 52,614
Gross Unrealized Gains | 1,389 | 828
Gross Unrealized Losses | (285) | (194)
Fair Value | 56,495 | 53,248
Obligations of U.S. government agencies Mortgage backed securities - residential [Member] |  |
Held to maturity securities |  |
Amortized cost | 4,659 | 5,414
Gross Unrealized Gains | 183 | 156
Gross Unrealized Losses | (92) | (99)
Fair Value | 4,750 | 5,471
Obligations of U.S. government agencies Mortgage backed securities -commercial [Member] |  |
Held to maturity securities |  |
Amortized cost | 1,050 | 1,101
Gross Unrealized Gains | 1 |
Gross Unrealized Losses |  | (2)
Fair Value | 1,051 | 1,099
Obligations of U.S. government-sponsored enterprises Mortgage backed securities - residential [Member] |  |
Held to maturity securities |  |
Amortized cost | 41,171 | 37,563
Gross Unrealized Gains | 1,201 | 647
Gross Unrealized Losses | (6) | (67)
Fair Value | 42,366 | 38,143
Obligations of U.S. government-sponsored enterprises Debt securities [Member] |  |
Held to maturity securities |  |
Amortized cost | 5,000 | 5,000
Gross Unrealized Gains | 4 | 2
Gross Unrealized Losses |  | (25)
Fair Value | 5,004 | 4,977
Private label mortgage-backed securities-residential [Member] |  |
Held to maturity securities |  |
Amortized cost | 511 | 536
Gross Unrealized Gains |  | 1
Gross Unrealized Losses | (8) | (1)
Fair Value | 503 | 536
Corporate securities [Member] |  |
Held to maturity securities |  |
Amortized cost | 3,000 | 3,000
Gross Unrealized Gains |  | 22
Gross Unrealized Losses | (179) |
Fair Value | $ 2,821 | $ 3,022

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- Definition Amount of accumulated unrealized gain on investments in debt securities classified as held-to-maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563 + Details
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- Definition Amount of accumulated unrealized loss on investments in debt securities classified as held-to-maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563 + Details
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