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Accumulated Other Comprehensive Income (Schedule of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balances $ 191,307 $ 168,115 $ 183,185 $ 163,736
Other comprehensive income 226 (299) 2,983 (2,763)
Balances 193,963 171,419 193,963 171,419
Accumulated Other Comprehensive Income (Loss)        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balances (193) (3,767) (2,950) (1,309)
Other comprehensive income     2,983 (2,763)
Balances 33 (4,066) 33 (4,066)
Accumulated Other Comprehensive Income (Loss) | Accounting Standards Update 2016-01        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Cumulative effect adjustment (ASU 2016-01)       6
Accumulated Net Unrealized Investment Gain (Loss) [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balances     (2,918) (1,255)
Other comprehensive income     2,967 (2,778)
Balances 49 (4,027) 49 (4,027)
Accumulated Net Unrealized Investment Gain (Loss) [Member] | Accounting Standards Update 2016-01        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Cumulative effect adjustment (ASU 2016-01)       6
Unrealized Gains Losses On Securities Transferred From Available For Sale To Held To Maturity [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balances     (32) (54)
Other comprehensive income, transferred from Available for sale to Held to maturity     16 15
Balances $ (16) $ (39) $ (16) $ (39)