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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Allowance for loan losses (in dollars)	$ 20,436	$ 19,909
Common stock, stated value per share (usd per share)	$ 0.125	$ 0.125
Common stock, Authorized shares (shares)	40,000,000	40,000,000
Common stock, Issued shares (shares)	14,612,540	14,595,320
Common stock, Outstanding shares (shares)	12,278,295	12,246,464
Treasury stock (shares)	2,334,245	2,348,856

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Face amount or stated value per share of common stock.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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