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Summary of Significant Accounting Policies (Details Textual) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Accounting Policies [Abstract]    
Allowance for doubtful accounts $ 202,000 $ 177,000
Advertising expense 1,000,000 1,100,000
Total unrecognized compensation $ 253,000  
Vesting period for unrecognized compensation cost to be recognized 1 year 3 months