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Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
 [1]
Statement of Financial Position [Abstract]    
Securities held to maturity, at fair value $ 51,001 $ 52,709
Allowance for loan losses 5,444 5,321
Other real estate owned, valuation allowance $ 0 $ 0
Preferred stock, par value (in usd per share) $ 1.25 $ 1.25
Preferred stock, shares authorized (in shares) 1,000,000 1,000,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0
Common stock, par value (in usd per share) $ 1.25 $ 1.25
Common stock, shares authorized (in shares) 8,000,000 8,000,000
Common stock, shares issued (in shares) 4,941,604 4,929,403
Common stock, shares outstanding (in shares) 4,941,604 4,929,403
[1] Derived from audited consolidated financial statements.