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Consolidated Balance Sheets - Parenthetical - USD ($)
Jun. 30, 2015
Dec. 31, 2014
Assets, Current [Abstract]    
Allowance for doubtful accounts $ 304,000 $ 289,000
Stockholders' Equity Attributable to Parent [Abstract]    
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, shares authorized 10,000,000 10,000,000
Preferred stock, shares outstanding 0 0
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 20,000,000 20,000,000
Common Stock, Shares, Outstanding 7,562,012 7,559,012