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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)

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