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Subordinated Debentures (Details Textual) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2005 | Dec. 31, 2003
Subordinated Debentures 2003 [Member] |  |  |  |  |
Subordinated Borrowing [Line Items] |  |  |  |  |
Proceeds from Issuance of Debt |  |  |  |  | $ 8.2
Debt Instrument, Description of Variable Rate Basis |  |  |  |  | Interest accrues at LIBOR plus 2.85%
Subordinated Borrowing, Interest Rate | 3.17% | 3.08% |  |  |
Debt Conversion, Original Debt, Due Date, Year |  |  |  |  | 2034
Subordinated Debentures 2005 [Member] |  |  |  |  |
Subordinated Borrowing [Line Items] |  |  |  |  |
Proceeds from Issuance of Debt |  |  |  | $ 8.2 |
Debt Instrument, Description of Variable Rate Basis |  |  |  | Interest accrues at LIBOR plus 1.34% |
Subordinated Borrowing, Interest Rate | 1.85% | 1.58% |  |  |
Debt Conversion, Original Debt, Due Date, Year |  |  |  | 2036 |
Subordinated Debentures 2013 [Member] |  |  |  |  |
Subordinated Borrowing [Line Items] |  |  |  |  |
Proceeds from Issuance of Debt |  |  | $ 5.2 |  |
Debt Instrument, Description of Variable Rate Basis |  |  | Interest accrues at LIBOR plus 1.62% |  |
Subordinated Borrowing, Interest Rate | 2.21% | 1.87% |  |  |
Debt Instrument, Interest Rate, Effective Percentage | 6.09% | 5.75% |  |  |
Debt Conversion, Original Debt, Due Date, Year |  |  | 2036 |  |

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- Definition Year the original debt was scheduled to mature, in CCYY format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 + Details
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- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. + References No definition available. + Details
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- Definition Stated interest rate of the subordinated debt. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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