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Preferred Stock Received in Troubled Asset Relief Program ("TARP") Capital Purchase Program ("CPP") (Details) (USD $) |  |  |  | 3 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Dec. 23, 2008 | Dec. 31, 2013 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 | 12,065 | 16,641 |  |  | 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 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 Reference 2: 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 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=6881521&loc=d3e23780-122690 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4, 6 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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