Fair Value of Financial Instruments and Fair Value Measurements (Details 1) (USD $) | Jun. 30, 2014 | Dec. 31, 2013 |
In Thousands, unless otherwise specified |
Assets: | ' | ' |
Available-for-sale securities | $318,515 | $300,246 |
Liabilities: | ' | ' |
Derivative financial instruments | 14 | ' |
Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Derivative financial instruments | 602 | 265 |
Liabilities: | ' | ' |
Derivative financial instruments | ' | 78 |
Agency Securities [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 19,876 | 19,643 |
Agency Securities [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 19,876 | 19,643 |
Nontaxable Municipal Bonds [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 104,837 | 91,793 |
Nontaxable Municipal Bonds [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 104,837 | 91,793 |
Taxable Municipal Bonds [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 54,320 | 52,472 |
Taxable Municipal Bonds [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 54,320 | 52,472 |
Collateralized Mortgage Backed Securities [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 129,357 | 125,593 |
Collateralized Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 129,357 | 125,593 |
Certificates of Deposit [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 8,417 | 9,142 |
Certificates of Deposit [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 8,417 | 9,142 |
Other than Securities Investment [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 3,896 | 5,271 |
Common Stock [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 1,207 | 1,103 |
Common Stock [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 1,207 | 1,103 |
Us Treasury Securities [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 501 | 500 |
Us Treasury Securities [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 501 | 500 |
Fair Value, Inputs, Level 1 [Member] | ' | ' |
Liabilities: | ' | ' |
Derivative financial instruments | 0 | ' |
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Derivative financial instruments | 0 | 0 |
Liabilities: | ' | ' |
Derivative financial instruments | ' | 0 |
Fair Value, Inputs, Level 1 [Member] | Agency Securities [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 0 | 0 |
Fair Value, Inputs, Level 1 [Member] | Nontaxable Municipal Bonds [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 0 | 0 |
Fair Value, Inputs, Level 1 [Member] | Taxable Municipal Bonds [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 0 | 0 |
Fair Value, Inputs, Level 1 [Member] | Collateralized Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 0 | 0 |
Fair Value, Inputs, Level 1 [Member] | Certificates of Deposit [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 0 | 0 |
Fair Value, Inputs, Level 1 [Member] | Other than Securities Investment [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 0 | 0 |
Fair Value, Inputs, Level 1 [Member] | Common Stock [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 1,207 | 1,103 |
Fair Value, Inputs, Level 1 [Member] | Us Treasury Securities [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 501 | 500 |
Fair Value, Inputs, Level 2 [Member] | ' | ' |
Liabilities: | ' | ' |
Derivative financial instruments | 14 | ' |
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Derivative financial instruments | 602 | 265 |
Liabilities: | ' | ' |
Derivative financial instruments | ' | 78 |
Fair Value, Inputs, Level 2 [Member] | Agency Securities [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 19,876 | 19,643 |
Fair Value, Inputs, Level 2 [Member] | Nontaxable Municipal Bonds [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 104,837 | 91,793 |
Fair Value, Inputs, Level 2 [Member] | Taxable Municipal Bonds [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 54,320 | 52,472 |
Fair Value, Inputs, Level 2 [Member] | Collateralized Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 129,357 | 125,593 |
Fair Value, Inputs, Level 2 [Member] | Certificates of Deposit [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 8,417 | 9,142 |
Fair Value, Inputs, Level 2 [Member] | Other than Securities Investment [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 0 | 0 |
Fair Value, Inputs, Level 2 [Member] | Common Stock [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 0 | 0 |
Fair Value, Inputs, Level 2 [Member] | Us Treasury Securities [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | ' | ' |
Liabilities: | ' | ' |
Derivative financial instruments | 0 | ' |
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Derivative financial instruments | 0 | 0 |
Liabilities: | ' | ' |
Derivative financial instruments | ' | 0 |
Fair Value, Inputs, Level 3 [Member] | Agency Securities [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Nontaxable Municipal Bonds [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Taxable Municipal Bonds [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Collateralized Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Certificates of Deposit [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Other than Securities Investment [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 3,896 | 5,271 |
Fair Value, Inputs, Level 3 [Member] | Common Stock [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Us Treasury Securities [Member] | Fair Value, Measurements, Recurring [Member] | ' | ' |
Assets: | ' | ' |
Available-for-sale securities | $0 | $0 |