Investment Securities (Amortized Cost and Fair Value of Available-for-Sale Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Security obligations due, amortized cost, One to five years	$ 340
Security obligations due, amortized cost, Five to ten years	18,302
Security obligations due, amortized cost, After ten years	135,928
Available for sale, amortized cost, total	154,570
Available for sale, amortized cost	367,612	$ 374,062
Security obligations due, Fair value, One to five years	346
Security obligations due, Fair value, Five to ten years	19,021
Security obligations due, Fair value, After ten years	142,142
Total Security obligations due, Fair value	161,509
Investment securities available for sale (carried at fair value)	375,948	370,875
Mortgage-backed securities, Government sponsored agencies
Schedule of Available-for-sale Securities [Line Items]
Available for sale, amortized cost	109,195	106,094
Investment securities available for sale (carried at fair value)	110,145	104,343
Collateralized mortgage obligations, Government sponsored agencies
Schedule of Available-for-sale Securities [Line Items]
Available for sale, amortized cost	103,847	110,994
Investment securities available for sale (carried at fair value)	$ 104,294	$ 109,281

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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