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Stockholders' Equity and Regulatory Capital (Narrative Disclosures) (Details) |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Jul. 15, 2008 right | Jun. 05, 2008 right | Dec. 31, 2015 $ / shares $ / right | Dec. 31, 2014 $ / shares
Regulatory Capital Requirements [Abstract] |  |  |  |
Dividend declared of one common share purchase right for each outstanding share of common stock | right |  | 1 |  |
Dividend paid of one common share purchase right for each outstanding share of common stock | right | 1 |  |  |
Common stock, par value | $ / shares |  |  | $ 0.01 | $ 0.01
Class of right, exercise price of rights | $ / shares |  |  | $ 42.50 |
Class of right, exercise price for each one-half of a common share | $ / right |  |  | 21.25 |
Rights will be exercisable only if a person or group acquires fifteen percent or more of the corporation’s common stock or announces a tender offer for such stock |  |  | 15.00% |
Value of additional shares acquired under the shareholder rights plan, common stock, market value multiplier of market value of common stock |  |  | 2 |
Description of possible effects of noncompliance or less than adequately capitalized |  |  | Failure to meet minimum capital requirements can result in certain mandatory, and possibly additional discretionary actions on the part of regulators, that if undertaken, could have a direct material effect on the Banks’ assets, liabilities and certain off-balance-sheet items as calculated under regulatory practices. |

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- Definition Exercise price per share or per unit of warrants or rights outstanding. + 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)(4)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Face amount or stated value per share of common stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition Description of the possible material effects of noncompliance with capital adequacy requirements when the entity is not in compliance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 + Details
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