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Accumulated Other Comprehensive Income (Schedule of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balances $ 187,082 $ 164,977 $ 183,185 $ 163,736
Other comprehensive income 1,311 (395) 2,757 (2,464)
Balances 191,307 168,115 191,307 168,115
Accumulated Other Comprehensive Income (Loss)        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balances (1,504) (3,378) (2,950) (1,309)
Other comprehensive income     2,757 (2,464)
Balances (193) (3,767) (193) (3,767)
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     2,747 (2,474)
Balances (171) (3,723) (171) (3,723)
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     10 10
Balances $ (22) $ (44) $ (22) $ (44)