Investment Securities (Details 4) - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Fair Value, Less than 12 months	$ 0	$ 904
Fair Value, 12 Months or More	0	0
Fair Value, Total	0	904
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] [Abstract]
Unrealized Loss, Less than 12 Months	0	4
Unrealized Loss, 12 Months or More	0	0
Unrealized Loss, Total	0	4
Obligations of states and political subdivisions
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Fair Value, Less than 12 months	0	904
Fair Value, 12 Months or More	0	0
Fair Value, Total	0	904
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] [Abstract]
Unrealized Loss, Less than 12 Months	0	4
Unrealized Loss, 12 Months or More	0	0
Unrealized Loss, Total	0	4
Mortgage-backed securities
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Fair Value, Less than 12 months	0	0
Fair Value, 12 Months or More	0	0
Fair Value, Total	0	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] [Abstract]
Unrealized Loss, Less than 12 Months	0	0
Unrealized Loss, 12 Months or More	0	0
Unrealized Loss, Total	$ 0	$ 0

Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] [Abstract]

No definition available.

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- Definition

Amount of accumulated unrealized loss on investments in debt securities classified as held-to-maturity that have been in a continuous loss position for twelve months or longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27337-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563

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- Definition

Amount of accumulated unrealized loss on investments in debt securities classified as held-to-maturity in a continuous loss position.

+ References

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Amount of accumulated unrealized loss on investments in debt securities classified as held-to-maturity that have been in a continuous loss position for less than twelve months.

+ References

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- Definition

This item represents the fair value of securities categorized as held-to-maturity that have been in a continuous unrealized loss position for less than twelve months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27337-111563

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This item represents the fair value of securities categorized as held-to-maturity securities that have been in a continuous unrealized loss position for twelve months or longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27337-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563

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