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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Securities, fair value | $ 498,041 | $ 553,010
Common stock, par value | $ 1.00 | $ 1.00
Common stock, shares authorized | 20,000,000 | 20,000,000
Common stock, shares issued | 15,527,804 | 15,597,446
Common stock, shares outstanding | 15,527,804 | 15,597,446
Accumulated other comprehensive income, tax | $ 1,297 | $ 962
Senior Preferred Stock [Member] |  |
Preferred stock, par value | $ 1.00 | $ 1.00
Preferred stock, shares authorized | 10,000,000 | 10,000,000
Preferred stock, shares issued | 0 | 0
Cumulative Preferred Stock [Member] |  |
Preferred stock, par value | $ 5.00 | $ 5.00
Preferred stock, shares authorized | 900,000 | 900,000
Preferred stock, shares issued | 0 | 0

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