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Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 733us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 828us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Preferred stock, par value $ 1us-gaap_PreferredStockParOrStatedValuePerShare $ 1us-gaap_PreferredStockParOrStatedValuePerShare
Preferred stock, shares authorized 500,000us-gaap_PreferredStockSharesAuthorized 500,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued 0us-gaap_PreferredStockSharesIssued 0us-gaap_PreferredStockSharesIssued
Preferred stock, shares outstanding 0us-gaap_PreferredStockSharesOutstanding 0us-gaap_PreferredStockSharesOutstanding
Common stock, par value $ 1us-gaap_CommonStockParOrStatedValuePerShare $ 1.00us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 35,000,000us-gaap_CommonStockSharesAuthorized 35,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 8,720,350us-gaap_CommonStockSharesIssued 8,670,512us-gaap_CommonStockSharesIssued
Common stock, shares outstanding 8,706,467us-gaap_CommonStockSharesOutstanding 8,658,885us-gaap_CommonStockSharesOutstanding
Treasury Stock, Shares 13,883us-gaap_TreasuryStockShares 11,627us-gaap_TreasuryStockShares