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Investment Securities (Amortized Cost and Estimated Fair Values of Investment Securities) (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Securities [Line Items]    
Held-to-maturity Securities, Amortized Cost $ 67,829 $ 59,454
Held-to-maturity Securities, Unrealized Gains 946 1,221
Held-to-maturity Securities, Unrealized Losses (344) (576)
Held-to-maturity Securities, Estimated Fair Value 68,431 60,099
Available for Sale, Total investment securities, Amortized Cost 153,559 172,867
Available-for-sale Securities, Unrealized Gains 196 290
Available-for-sale Securities, Unrealized Losses (1,376) (955)
Available-for-sale securities 152,379 172,202
US Government Agency Obligations [Member]    
Securities [Line Items]    
Held-to-maturity Securities, Amortized Cost 7,973 7,730
Held-to-maturity Securities, Unrealized Gains 320 343
Held-to-maturity Securities, Estimated Fair Value 8,293 8,073
Government Sponsored Entities (GSE) mortgage-backed securities [Member]    
Securities [Line Items]    
Held-to-maturity Securities, Amortized Cost 2,759 3,579
Held-to-maturity Securities, Unrealized Gains 83 133
Held-to-maturity Securities, Estimated Fair Value 2,842 3,712
Collateralized Mortgage Obligations GSE [Member]    
Securities [Line Items]    
Held-to-maturity Securities, Amortized Cost 2,623 3,605
Held-to-maturity Securities, Unrealized Gains 9 3
Held-to-maturity Securities, Unrealized Losses (26) (29)
Held-to-maturity Securities, Estimated Fair Value 2,606 3,579
Corporate Bonds [Member]    
Securities [Line Items]    
Held-to-maturity Securities, Amortized Cost 11,518 3,951
Held-to-maturity Securities, Unrealized Gains 234 324
Held-to-maturity Securities, Unrealized Losses (42)  
Held-to-maturity Securities, Estimated Fair Value 11,710 4,275
State and Municipal Tax-Exempt [Member]    
Securities [Line Items]    
Held-to-maturity Securities, Amortized Cost 42,956 40,589
Held-to-maturity Securities, Unrealized Gains 300 418
Held-to-maturity Securities, Unrealized Losses (276) (547)
Held-to-maturity Securities, Estimated Fair Value 42,980 40,460
US Government Agency Obligations [Member]    
Securities [Line Items]    
Available for Sale, Total investment securities, Amortized Cost 58,460 61,547
Available-for-sale Securities, Unrealized Gains   4
Available-for-sale Securities, Unrealized Losses (252) (197)
Available-for-sale securities 58,208 61,354
Government Sponsored Entities (GSE) mortgage-backed securities [Member]    
Securities [Line Items]    
Available for Sale, Total investment securities, Amortized Cost 40,663 66,669
Available-for-sale Securities, Unrealized Gains 13 189
Available-for-sale Securities, Unrealized Losses (325) (135)
Available-for-sale securities 40,351 66,723
Corporate Bonds [Member]    
Securities [Line Items]    
Available for Sale, Total investment securities, Amortized Cost 20,921 13,208
Available-for-sale Securities, Unrealized Losses (350) (106)
Available-for-sale securities 20,571 13,102
Collateralized Mortgage Obligations GSE [Member]    
Securities [Line Items]    
Available for Sale, Total investment securities, Amortized Cost 16,241 20,499
Available-for-sale Securities, Unrealized Gains 3 8
Available-for-sale Securities, Unrealized Losses (438) (496)
Available-for-sale securities 15,806 20,011
State and Municipal Tax-Exempt [Member]    
Securities [Line Items]    
Available for Sale, Total investment securities, Amortized Cost 17,274 10,917
Available-for-sale Securities, Unrealized Gains 180 87
Available-for-sale Securities, Unrealized Losses (11) (10)
Available-for-sale securities $ 17,443 10,994
Equity Securities [Member]    
Securities [Line Items]    
Available for Sale, Total investment securities, Amortized Cost   27
Available-for-sale Securities, Unrealized Gains   2
Available-for-sale Securities, Unrealized Losses   (11)
Available-for-sale securities   $ 18