Investment Securities (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | |
Sep. 30, 2015USD ($)item | Sep. 30, 2014USD ($) | Sep. 30, 2015USD ($)item | Sep. 30, 2014USD ($) | Dec. 31, 2014USD ($)item |
Carrying value and fair value of available for sale investment securities [Abstract] | | | | | |
Total available for sale securities | $ 226,981 | | $ 226,981 | | $ 248,096 |
Gross unrealized gains | 4,424 | | 4,424 | | 4,334 |
Gross unrealized losses | (793) | | (793) | | (2,062) |
Available-for-sale Securities, Total | 230,612 | | 230,612 | | 250,368 |
Amortized cost [Abstract] | | | | | |
After 1 but within 5 years | 8,085 | | 8,085 | | |
After 5 but within 10 years | 20,354 | | 20,354 | | |
After 10 years | 9,113 | | 9,113 | | |
Total available for sale debt securities | 224,757 | | 224,757 | | |
Available-for-sale Equity Securities, Amortized Cost Basis | 2,224 | | 2,224 | | |
Total available for sale securities | 226,981 | | 226,981 | | 248,096 |
Fair value [Abstract] | | | | | |
After 1 but within 5 years | 8,080 | | 8,080 | | |
After 5 but within 10 years | 20,382 | | 20,382 | | |
After 10 years | 9,037 | | 9,037 | | |
Total available for sale debt securities | 227,589 | | 227,589 | | |
No contractual maturity | 3,023 | | 3,023 | | |
Fair value | 230,612 | | 230,612 | | 250,368 |
Proceeds from sales of AFS investment securities | 9,200 | $ 19,300 | 33,653 | $ 55,290 | |
Gross realized gains and losses on the sale of securities recognized in earnings [Abstract] | | | | | |
Gross realized gains | 104 | 446 | 676 | 1,143 | |
Gross realized losses | (24) | (208) | (24) | (813) | |
Net realized gains | 80 | $ 238 | 652 | $ 330 | |
Available for sale securities, continuous unrealized loss position [Abstract] | | | | | |
Less than 12 months, Fair value | 20,229 | | 20,229 | | 47,882 |
12 months or longer, Fair value | 48,544 | | 48,544 | | 77,070 |
Total, Fair value | 68,773 | | 68,773 | | 124,952 |
Less than 12 months, Gross unrealized losses | (64) | | (64) | | (250) |
12 months or longer, Gross unrealized losses | (729) | | (729) | | (1,812) |
Total, Gross unrealized losses | $ (793) | | $ (793) | | $ (2,062) |
Less than 12 months, number of positions | item | 11 | | 11 | | 20 |
12 months or longer, number of positions | item | 16 | | 16 | | 28 |
Total , number of positions | item | 27 | | 27 | | 48 |
Fair value | $ 230,612 | | $ 230,612 | | $ 250,368 |
Number of securities in an unrealized loss position for less than twelve months | item | 11 | | 11 | | 20 |
Number of securities in an unrealized loss position for more than twelve months | item | 16 | | 16 | | 28 |
U.S. Government Agencies [Member] | | | | | |
Carrying value and fair value of available for sale investment securities [Abstract] | | | | | |
Total available for sale securities | $ 26,126 | | $ 26,126 | | $ 26,123 |
Gross unrealized gains | 20 | | 20 | | |
Gross unrealized losses | (239) | | (239) | | (834) |
Available-for-sale Securities, Total | 25,907 | | 25,907 | | 25,289 |
Amortized cost [Abstract] | | | | | |
Total available for sale securities | 26,126 | | 26,126 | | 26,123 |
Fair value [Abstract] | | | | | |
Fair value | 25,907 | | 25,907 | | 25,289 |
Available for sale securities, continuous unrealized loss position [Abstract] | | | | | |
12 months or longer, Fair value | 19,149 | | 19,149 | | 25,289 |
Total, Fair value | 19,149 | | 19,149 | | 25,289 |
12 months or longer, Gross unrealized losses | (239) | | (239) | | (834) |
Total, Gross unrealized losses | $ (239) | | $ (239) | | $ (834) |
12 months or longer, number of positions | item | 6 | | 6 | | 8 |
Total , number of positions | item | 6 | | 6 | | 8 |
Fair value | $ 25,907 | | $ 25,907 | | $ 25,289 |
Number of securities in an unrealized loss position for more than twelve months | item | 6 | | 6 | | 8 |
Mortgage-backed Securities-residential [Member] | | | | | |
Carrying value and fair value of available for sale investment securities [Abstract] | | | | | |
Total available for sale securities | $ 14,184 | | $ 14,184 | | $ 22,073 |
Gross unrealized gains | 249 | | 249 | | 375 |
Gross unrealized losses | (15) | | (15) | | (61) |
Available-for-sale Securities, Total | 14,418 | | 14,418 | | 22,387 |
Amortized cost [Abstract] | | | | | |
Available for sale securities Debt maturities, amortized cost basis | 14,184 | | 14,184 | | |
Total available for sale securities | 14,184 | | 14,184 | | 22,073 |
Fair value [Abstract] | | | | | |
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value | 14,418 | | 14,418 | | |
Fair value | 14,418 | | 14,418 | | 22,387 |
Available for sale securities, continuous unrealized loss position [Abstract] | | | | | |
12 months or longer, Fair value | 2,691 | | 2,691 | | 8,913 |
Total, Fair value | 2,691 | | 2,691 | | 8,913 |
12 months or longer, Gross unrealized losses | (15) | | (15) | | (61) |
Total, Gross unrealized losses | $ (15) | | $ (15) | | $ (61) |
12 months or longer, number of positions | item | 1 | | 1 | | 3 |
Total , number of positions | item | 1 | | 1 | | 3 |
Fair value | $ 14,418 | | $ 14,418 | | $ 22,387 |
Number of securities in an unrealized loss position for more than twelve months | item | 1 | | 1 | | 3 |
Collateralized Mortgage Obligations, Issued or Guaranteed by U.S. Government Agencies [Member] | | | | | |
Carrying value and fair value of available for sale investment securities [Abstract] | | | | | |
Total available for sale securities | $ 170,111 | | $ 170,111 | | $ 167,711 |
Gross unrealized gains | 3,122 | | 3,122 | | 2,350 |
Gross unrealized losses | (488) | | (488) | | (1,084) |
Available-for-sale Securities, Total | 172,745 | | 172,745 | | 168,977 |
Amortized cost [Abstract] | | | | | |
Available for sale securities Debt maturities, amortized cost basis | 170,111 | | 170,111 | | |
Total available for sale securities | 170,111 | | 170,111 | | 167,711 |
Fair value [Abstract] | | | | | |
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value | 172,745 | | 172,745 | | |
Fair value | 172,745 | | 172,745 | | 168,977 |
Available for sale securities, continuous unrealized loss position [Abstract] | | | | | |
Less than 12 months, Fair value | 15,253 | | 15,253 | | 36,757 |
12 months or longer, Fair value | 26,704 | | 26,704 | | 38,798 |
Total, Fair value | 41,957 | | 41,957 | | 75,555 |
Less than 12 months, Gross unrealized losses | (13) | | (13) | | (204) |
12 months or longer, Gross unrealized losses | (475) | | (475) | | (880) |
Total, Gross unrealized losses | $ (488) | | $ (488) | | $ (1,084) |
Less than 12 months, number of positions | item | 5 | | 5 | | 12 |
12 months or longer, number of positions | item | 9 | | 9 | | 12 |
Total , number of positions | item | 14 | | 14 | | 24 |
Fair value | $ 172,745 | | $ 172,745 | | $ 168,977 |
Number of securities in an unrealized loss position for less than twelve months | item | 5 | | 5 | | 12 |
Number of securities in an unrealized loss position for more than twelve months | item | 9 | | 9 | | 12 |
Mortgage-backed Securities, Issued by Private Enterprises [Member] | | | | | |
Carrying value and fair value of available for sale investment securities [Abstract] | | | | | |
Total available for sale securities | $ 2,910 | | $ 2,910 | | $ 3,738 |
Gross unrealized gains | 25 | | 25 | | 7 |
Gross unrealized losses | (8) | | (8) | | (14) |
Available-for-sale Securities, Total | 2,927 | | 2,927 | | 3,731 |
Amortized cost [Abstract] | | | | | |
Available for sale securities Debt maturities, amortized cost basis | 2,910 | | 2,910 | | |
Total available for sale securities | 2,910 | | 2,910 | | 3,738 |
Fair value [Abstract] | | | | | |
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value | 2,927 | | 2,927 | | |
Fair value | 2,927 | | 2,927 | | 3,731 |
Available for sale securities, continuous unrealized loss position [Abstract] | | | | | |
Less than 12 months, Fair value | 1,184 | | 1,184 | | 1,432 |
Total, Fair value | 1,184 | | 1,184 | | 1,432 |
Less than 12 months, Gross unrealized losses | (8) | | (8) | | (14) |
Total, Gross unrealized losses | $ (8) | | $ (8) | | $ (14) |
Less than 12 months, number of positions | item | 1 | | 1 | | 1 |
Total , number of positions | item | 1 | | 1 | | 1 |
Fair value | $ 2,927 | | $ 2,927 | | $ 3,731 |
Number of securities in an unrealized loss position for less than twelve months | item | 1 | | 1 | | 1 |
Corporate Bonds [Member] | | | | | |
Carrying value and fair value of available for sale investment securities [Abstract] | | | | | |
Total available for sale securities | $ 1,500 | | $ 1,500 | | $ 15,617 |
Gross unrealized gains | 20 | | 20 | | 144 |
Gross unrealized losses | | | | | (34) |
Available-for-sale Securities, Total | 1,520 | | 1,520 | | 15,727 |
Amortized cost [Abstract] | | | | | |
Total available for sale securities | 1,500 | | 1,500 | | 15,617 |
Fair value [Abstract] | | | | | |
Fair value | 1,520 | | 1,520 | | 15,727 |
Available for sale securities, continuous unrealized loss position [Abstract] | | | | | |
Less than 12 months, Fair value | | | | | 8,054 |
12 months or longer, Fair value | | | | | 991 |
Total, Fair value | | | | | 9,045 |
Less than 12 months, Gross unrealized losses | | | | | (25) |
12 months or longer, Gross unrealized losses | | | | | (9) |
Total, Gross unrealized losses | | | | | $ (34) |
Less than 12 months, number of positions | item | | | | | 5 |
12 months or longer, number of positions | item | | | | | 1 |
Total , number of positions | item | | | | | 6 |
Fair value | 1,520 | | 1,520 | | $ 15,727 |
Number of securities in an unrealized loss position for less than twelve months | item | | | | | 5 |
Number of securities in an unrealized loss position for more than twelve months | item | | | | | 1 |
Municipal Bonds [Member] | | | | | |
Carrying value and fair value of available for sale investment securities [Abstract] | | | | | |
Total available for sale securities | 9,926 | | 9,926 | | $ 10,117 |
Gross unrealized gains | 165 | | 165 | | 91 |
Gross unrealized losses | (19) | | (19) | | (35) |
Available-for-sale Securities, Total | 10,072 | | 10,072 | | 10,173 |
Amortized cost [Abstract] | | | | | |
Total available for sale securities | 9,926 | | 9,926 | | 10,117 |
Fair value [Abstract] | | | | | |
Fair value | 10,072 | | 10,072 | | 10,173 |
Available for sale securities, continuous unrealized loss position [Abstract] | | | | | |
Less than 12 months, Fair value | 3,557 | | 3,557 | | 1,639 |
12 months or longer, Fair value | | | | | 3,079 |
Total, Fair value | 3,557 | | 3,557 | | 4,718 |
Less than 12 months, Gross unrealized losses | (19) | | (19) | | (7) |
12 months or longer, Gross unrealized losses | | | | | (28) |
Total, Gross unrealized losses | $ (19) | | $ (19) | | $ (35) |
Less than 12 months, number of positions | item | 4 | | 4 | | 2 |
12 months or longer, number of positions | item | | | | | 4 |
Total , number of positions | item | 4 | | 4 | | 6 |
Fair value | $ 10,072 | | $ 10,072 | | $ 10,173 |
Number of securities in an unrealized loss position for less than twelve months | item | 4 | | 4 | | 2 |
Number of securities in an unrealized loss position for more than twelve months | item | | | | | 4 |
Private Equity Funds [Member] | | | | | |
Carrying value and fair value of available for sale investment securities [Abstract] | | | | | |
Total available for sale securities | $ 2,198 | | $ 2,198 | | $ 2,684 |
Gross unrealized gains | 823 | | 823 | | 1,350 |
Gross unrealized losses | (24) | | (24) | | |
Available-for-sale Securities, Total | 2,997 | | 2,997 | | 4,034 |
Amortized cost [Abstract] | | | | | |
Total available for sale securities | 2,198 | | 2,198 | | 2,684 |
Fair value [Abstract] | | | | | |
Fair value | 2,997 | | 2,997 | | 4,034 |
Available for sale securities, continuous unrealized loss position [Abstract] | | | | | |
Less than 12 months, Fair value | 235 | | 235 | | |
Total, Fair value | 235 | | 235 | | |
Less than 12 months, Gross unrealized losses | (24) | | (24) | | |
Total, Gross unrealized losses | $ (24) | | $ (24) | | |
Less than 12 months, number of positions | item | 1 | | 1 | | |
Total , number of positions | item | 1 | | 1 | | |
Fair value | $ 2,997 | | $ 2,997 | | 4,034 |
Number of securities in an unrealized loss position for less than twelve months | item | 1 | | 1 | | |
Common Stock [Member] | | | | | |
Carrying value and fair value of available for sale investment securities [Abstract] | | | | | |
Total available for sale securities | $ 26 | | $ 26 | | 33 |
Gross unrealized gains | | | | | 17 |
Available-for-sale Securities, Total | 26 | | 26 | | 50 |
Amortized cost [Abstract] | | | | | |
Total available for sale securities | 26 | | 26 | | 33 |
Fair value [Abstract] | | | | | |
Fair value | 26 | | 26 | | 50 |
Available for sale securities, continuous unrealized loss position [Abstract] | | | | | |
Fair value | $ 26 | | $ 26 | | $ 50 |