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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
Dec. 31, 2014
Dec. 31, 2013
CONSOLIDATED BALANCE SHEETS    
Preferred stock, par value (in dollars per share) $ 1.00us-gaap_PreferredStockParOrStatedValuePerShare $ 1.00us-gaap_PreferredStockParOrStatedValuePerShare
Preferred stock, shares authorized 4,000,000us-gaap_PreferredStockSharesAuthorized 4,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued 0us-gaap_PreferredStockSharesIssued 0us-gaap_PreferredStockSharesIssued
Common stock, par value (in dollars per share) $ 0.01us-gaap_CommonStockParOrStatedValuePerShare $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 35,000,000us-gaap_CommonStockSharesAuthorized 35,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 7,380,780us-gaap_CommonStockSharesIssued 7,363,374us-gaap_CommonStockSharesIssued
Common stock, shares outstanding 7,380,780us-gaap_CommonStockSharesOutstanding 7,363,374us-gaap_CommonStockSharesOutstanding
Treasury stock, shares 48,445us-gaap_TreasuryStockShares 48,445us-gaap_TreasuryStockShares
Trade accounts receivable, allowance for doubtful accounts $ 557,867us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 0us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent