Securities Portfolio (Details) (USD $) | 12 Months Ended |
In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013 |
| Security | Security |
Amortized cost and fair value of securities held-to-maturity [Abstract] | | |
Amortized Cost | $90,089 | $96,847 |
Gross Unrealized Gains | 4,338 | 1,326 |
Gross Unrealized Losses | -21 | -720 |
Fair Value | 94,406 | 97,453 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Losses [Abstract] | | |
Held-to-maturity securities, less than twelve months, gross unrealized losses | 2 | 715 |
Held-to-maturity securities, twelve months or longer, gross unrealized losses | 19 | 5 |
Held-to-maturity securities, unrealized loss position | 21 | 720 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | | |
Held-to-maturity securities, less than twelve months, fair value | 1,261 | 23,765 |
Held-to-maturity securities, twelve months or longer, fair value | 1,300 | 95 |
Held-to-maturity securities, continuous unrealized loss position, fair value | 2,561 | 23,860 |
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Accumulated Losses [Abstract] | | |
Available-for-sale and held-to-maturity securities, less than twelve months, gross unrealized losses | 84 | 7,301 |
Available-for-sale and held-to-maturity securities, twelve months or longer, gross unrealized losses | 792 | 1,825 |
Available-for-sale and held-to-maturity securities, unrealized loss position | 876 | 9,126 |
Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Fair Value [Abstract] | | |
Available-for-sale and held-to-maturity securities, less than twelve months, fair value | 39,635 | 142,943 |
Available-for-sale and held-to-maturity securities, twelve months or longer, fair value | 50,463 | 20,329 |
Available-for-sale and held-to-maturity securities, unrealized loss position, fair value | 90,098 | 163,272 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | | |
Number of Held-to-maturity securities | 7 | 51 |
Available For Sale And Held To Maturity Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 54 | 158 |
Amortized cost and fair value of securities available-for-sale [Abstract] | | |
Available-for-Sale Securities, Amortized Cost | 139,464 | 163,695 |
Available-for-Sale Securities, Gross Unrealized Gains | 737 | 350 |
Available-for-Sale Securities, Gross Unrealized Losses | -855 | -8,406 |
Available-for-Sale Securities, Fair Value | 139,346 | 155,639 |
Securities pledged as collateral | 134,542 | 127,735 |
Securities Available-for-Sale, Gross Unrealized Losses [Abstract] | | |
Securities available-for-sale, less than twelve months, gross unrealized losses | 82 | 6,586 |
Securities available-for-sale, more than twelve months, gross unrealized losses | 773 | 1,820 |
Securities available-for-sale, continuous unrealized loss position | 855 | 8,406 |
Securities Available-for-Sale, Fair Value [Abstract] | | |
Securities available-for-sale, less than twelve months, fair value | 38,374 | 119,178 |
Securities available-for-sale, more than twelve months, fair value | 49,163 | 20,234 |
Securities available-for-sale, continuous unrealized loss position, fair value | 87,537 | 139,412 |
Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | | |
Number of securities available-for-sale | 47 | 107,000 |
Available-for-Sale, Amortized Cost [Abstract] | | |
Due in one year or less | 20,100 | |
Due after one year through five years | 4,339 | |
Due after five years through ten years | 13,039 | |
Due after ten years | 101,167 | |
Total debt securities | 138,645 | |
Other securities without stated maturities | 819 | |
Total securities | 139,464 | |
Available-for-Sale, Fair Value [Abstract] | | |
Due in one year or less | 20,100 | |
Due after one year through five years | 4,383 | |
Due after five years through ten years | 13,301 | |
Due after ten years | 100,758 | |
Total debt securities | 138,542 | |
Other securities without stated maturities | 804 | |
Fair Value | 139,346 | |
Held-to-Maturity, Amortized Cost [Abstract] | | |
Due in one year or less | 0 | |
Due after one year through five years | 7,322 | |
Due after five years through ten years | 12,201 | |
Due after ten years | 70,566 | |
Total debt securities | 90,089 | |
Other securities without stated maturities | 0 | |
Total securities | 90,089 | 96,847 |
Held-to-Maturity, Fair Value [Abstract] | | |
Due in one year or less | 0 | |
Due after one year through five years | 7,381 | |
Due after five years through ten years | 12,364 | |
Due after ten years | 74,661 | |
Total debt securities | 94,406 | |
Other securities without stated maturities | 0 | |
Fair Value | 94,406 | 97,453 |
Information about securities sold [Abstract] | | |
Proceeds from sales | 38,653 | 63,637 |
Gross realized gains | 276 | 191 |
Gross realized losses | 274 | 217 |
US Treasury Securities [Member] | | |
Amortized cost and fair value of securities available-for-sale [Abstract] | | |
Available-for-Sale Securities, Amortized Cost | 20,000 | 0 |
Available-for-Sale Securities, Gross Unrealized Gains | 0 | 0 |
Available-for-Sale Securities, Gross Unrealized Losses | 0 | 0 |
Available-for-Sale Securities, Fair Value | 20,000 | 0 |
Securities Available-for-Sale, Gross Unrealized Losses [Abstract] | | |
Securities available-for-sale, less than twelve months, gross unrealized losses | 0 | |
Securities available-for-sale, more than twelve months, gross unrealized losses | 0 | |
Securities available-for-sale, continuous unrealized loss position | 0 | |
Securities Available-for-Sale, Fair Value [Abstract] | | |
Securities available-for-sale, less than twelve months, fair value | 20,000 | |
Securities available-for-sale, more than twelve months, fair value | 0 | |
Securities available-for-sale, continuous unrealized loss position, fair value | 20,000 | |
Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | | |
Number of securities available-for-sale | 1 | |
Obligations of US Government Agencies [Member] | | |
Amortized cost and fair value of securities available-for-sale [Abstract] | | |
Available-for-Sale Securities, Amortized Cost | 4,768 | 15,189 |
Available-for-Sale Securities, Gross Unrealized Gains | 2 | 263 |
Available-for-Sale Securities, Gross Unrealized Losses | -152 | -428 |
Available-for-Sale Securities, Fair Value | 4,618 | 15,024 |
Securities Available-for-Sale, Gross Unrealized Losses [Abstract] | | |
Securities available-for-sale, less than twelve months, gross unrealized losses | 0 | 0 |
Securities available-for-sale, more than twelve months, gross unrealized losses | 152 | 428 |
Securities available-for-sale, continuous unrealized loss position | 152 | 428 |
Securities Available-for-Sale, Fair Value [Abstract] | | |
Securities available-for-sale, less than twelve months, fair value | 0 | 0 |
Securities available-for-sale, more than twelve months, fair value | 4,316 | 4,403 |
Securities available-for-sale, continuous unrealized loss position, fair value | 4,316 | 4,403 |
Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | | |
Number of securities available-for-sale | 1 | 1,000 |
Obligations of States and Political Subdivisions [Member] | | |
Amortized cost and fair value of securities available-for-sale [Abstract] | | |
Available-for-Sale Securities, Amortized Cost | 49,783 | 51,032 |
Available-for-Sale Securities, Gross Unrealized Gains | 698 | 86 |
Available-for-Sale Securities, Gross Unrealized Losses | -235 | -4,018 |
Available-for-Sale Securities, Fair Value | 50,246 | 47,100 |
Securities Available-for-Sale, Gross Unrealized Losses [Abstract] | | |
Securities available-for-sale, less than twelve months, gross unrealized losses | 2 | 3,246 |
Securities available-for-sale, more than twelve months, gross unrealized losses | 233 | 772 |
Securities available-for-sale, continuous unrealized loss position | 235 | 4,018 |
Securities Available-for-Sale, Fair Value [Abstract] | | |
Securities available-for-sale, less than twelve months, fair value | 604 | 36,235 |
Securities available-for-sale, more than twelve months, fair value | 11,951 | 6,450 |
Securities available-for-sale, continuous unrealized loss position, fair value | 12,555 | 42,685 |
Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | | |
Number of securities available-for-sale | 24 | 82,000 |
Mortgage-backed Securities [Member] | | |
Amortized cost and fair value of securities available-for-sale [Abstract] | | |
Available-for-Sale Securities, Amortized Cost | 61,296 | 94,685 |
Available-for-Sale Securities, Gross Unrealized Gains | 34 | 0 |
Available-for-Sale Securities, Gross Unrealized Losses | -442 | -3,935 |
Available-for-Sale Securities, Fair Value | 60,888 | 90,750 |
Securities Available-for-Sale, Gross Unrealized Losses [Abstract] | | |
Securities available-for-sale, less than twelve months, gross unrealized losses | 62 | 3,321 |
Securities available-for-sale, more than twelve months, gross unrealized losses | 380 | 614 |
Securities available-for-sale, continuous unrealized loss position | 442 | 3,935 |
Securities Available-for-Sale, Fair Value [Abstract] | | |
Securities available-for-sale, less than twelve months, fair value | 16,589 | 81,664 |
Securities available-for-sale, more than twelve months, fair value | 32,104 | 9,086 |
Securities available-for-sale, continuous unrealized loss position, fair value | 48,693 | 90,750 |
Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | | |
Number of securities available-for-sale | 6 | 12,000 |
Money Market Investments [Member] | | |
Amortized cost and fair value of securities available-for-sale [Abstract] | | |
Available-for-Sale Securities, Amortized Cost | 719 | 691 |
Available-for-Sale Securities, Gross Unrealized Gains | 0 | 0 |
Available-for-Sale Securities, Gross Unrealized Losses | 0 | 0 |
Available-for-Sale Securities, Fair Value | 719 | 691 |
Corporate bond and other securities [Member] | | |
Amortized cost and fair value of securities available-for-sale [Abstract] | | |
Available-for-Sale Securities, Amortized Cost | 2,798 | 2,098 |
Available-for-Sale Securities, Gross Unrealized Gains | 3 | 1 |
Available-for-Sale Securities, Gross Unrealized Losses | -11 | -25 |
Available-for-Sale Securities, Fair Value | 2,790 | 2,074 |
Securities Available-for-Sale, Gross Unrealized Losses [Abstract] | | |
Securities available-for-sale, less than twelve months, gross unrealized losses | 3 | 19 |
Securities available-for-sale, more than twelve months, gross unrealized losses | 8 | 6 |
Securities available-for-sale, continuous unrealized loss position | 11 | 25 |
Securities Available-for-Sale, Fair Value [Abstract] | | |
Securities available-for-sale, less than twelve months, fair value | 1,096 | 1,279 |
Securities available-for-sale, more than twelve months, fair value | 792 | 295 |
Securities available-for-sale, continuous unrealized loss position, fair value | 1,888 | 1,574 |
Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | | |
Number of securities available-for-sale | 14 | 12,000 |
Common Stock [Member] | | |
Amortized cost and fair value of securities available-for-sale [Abstract] | | |
Available-for-Sale Securities, Amortized Cost | 100 | |
Available-for-Sale Securities, Gross Unrealized Gains | 0 | |
Available-for-Sale Securities, Gross Unrealized Losses | -15 | |
Available-for-Sale Securities, Fair Value | 85 | |
Securities Available-for-Sale, Gross Unrealized Losses [Abstract] | | |
Securities available-for-sale, less than twelve months, gross unrealized losses | 15 | |
Securities available-for-sale, more than twelve months, gross unrealized losses | 0 | |
Securities available-for-sale, continuous unrealized loss position | 15 | |
Securities Available-for-Sale, Fair Value [Abstract] | | |
Securities available-for-sale, less than twelve months, fair value | 85 | |
Securities available-for-sale, more than twelve months, fair value | 0 | |
Securities available-for-sale, continuous unrealized loss position, fair value | 85 | |
Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | | |
Number of securities available-for-sale | 1 | |
Obligations of US Government Agencies [Member] | | |
Amortized cost and fair value of securities held-to-maturity [Abstract] | | |
Amortized Cost | 100 | 400 |
Gross Unrealized Gains | 0 | 1 |
Gross Unrealized Losses | -3 | -5 |
Fair Value | 97 | 396 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Losses [Abstract] | | |
Held-to-maturity securities, less than twelve months, gross unrealized losses | 0 | 0 |
Held-to-maturity securities, twelve months or longer, gross unrealized losses | 3 | 5 |
Held-to-maturity securities, unrealized loss position | 3 | 5 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | | |
Held-to-maturity securities, less than twelve months, fair value | 0 | 0 |
Held-to-maturity securities, twelve months or longer, fair value | 97 | 95 |
Held-to-maturity securities, continuous unrealized loss position, fair value | 97 | 95 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | | |
Number of Held-to-maturity securities | 1 | 1 |
Held-to-Maturity, Fair Value [Abstract] | | |
Fair Value | 97 | 396 |
Obligations of States and Political Subdivisions [Member] | | |
Amortized cost and fair value of securities held-to-maturity [Abstract] | | |
Amortized Cost | 29,529 | 30,120 |
Gross Unrealized Gains | 449 | 29 |
Gross Unrealized Losses | -18 | -715 |
Fair Value | 29,960 | 29,434 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Losses [Abstract] | | |
Held-to-maturity securities, less than twelve months, gross unrealized losses | 2 | 715 |
Held-to-maturity securities, twelve months or longer, gross unrealized losses | 16 | 0 |
Held-to-maturity securities, unrealized loss position | 18 | 715 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] | | |
Held-to-maturity securities, less than twelve months, fair value | 1,261 | 23,765 |
Held-to-maturity securities, twelve months or longer, fair value | 1,203 | 0 |
Held-to-maturity securities, continuous unrealized loss position, fair value | 2,464 | 23,765 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] | | |
Number of Held-to-maturity securities | 6 | 50 |
Held-to-Maturity, Fair Value [Abstract] | | |
Fair Value | 29,960 | 29,434 |
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | | |
Amortized cost and fair value of securities held-to-maturity [Abstract] | | |
Amortized Cost | 60,460 | 66,327 |
Gross Unrealized Gains | 3,889 | 1,296 |
Gross Unrealized Losses | 0 | 0 |
Fair Value | 64,349 | 67,623 |
Held-to-Maturity, Fair Value [Abstract] | | |
Fair Value | $64,349 | $67,623 |