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Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 4,206us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 4,246us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Preferred stock, shares authorized 250us-gaap_PreferredStockSharesAuthorized 250us-gaap_PreferredStockSharesAuthorized
Common stock, shares authorized 50,000us-gaap_CommonStockSharesAuthorized 50,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 17,581us-gaap_CommonStockSharesIssued 17,472us-gaap_CommonStockSharesIssued