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Preferred Stock Received in Troubled Asset Relief Program ("TARP") Capital Purchase Program ("CPP") (Details) (USD $) |  |  |  | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2014 | Sep. 30, 2013 | Dec. 23, 2008 | Jun. 30, 2014 Series A Preferred Stock | Jun. 30, 2014 Series A Preferred Stock | Nov. 13, 2012 Series A Preferred Stock | Dec. 23, 2008 Series A Preferred Stock | Dec. 23, 2008 Series A Preferred Stock Minimum | Dec. 23, 2008 Series A Preferred Stock Maximum
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Preferred stock, proceeds from Capital Purchase Program (CPP) |  |  | $ 16,640,000 |  |  |  |  |  |
Preferred stock shares issued | 0 | 12,065 |  |  |  | 16,641 | 16,641 |  |
Preferred stock per share liquidation value (in dollars per share) | $ 1,000 | $ 1,000 |  |  |  |  | $ 1,000 |  |
Warrants to purchase shares of common stock |  |  | 370,899 |  |  |  |  |  |
Warrant, exercise price per share (in dollars per share) |  |  | $ 6.73 |  |  |  |  |  |
Preferred stock dividend rate |  |  |  |  |  |  |  | 5.00% | 9.00%
Preferred stock dividend, term of initial rate |  |  |  |  | 5 years |  |  |  |
Shares repurchased and retired (in shares) |  |  |  | 4,576 |  |  |  |  |
Shares repurchased and retired, amount |  |  |  | 4,320,000 |  |  |  |  |
Shares repurchased and retired, discount from par value |  |  |  | $ 255,000 |  |  |  |  |

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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Subparagraph 2 -Article 4 + Details
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- Definition The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph d -Article 4 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(d)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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