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Notes Payable (Details) (Revolving Credit Facility One [Member], USD $)
 3 Months Ended
Mar. 31, 2013
Dec. 31, 2012
May 01, 2012
Revolving Credit Facility One [Member]
      
Notes Payable (Textual) [Abstract]      
Borrowed under the agreement $ 500,000 $ 500,000  
Additional borrowings available based on Company's borrowing 8,900,000    
Revolving credit line 10,000,000    
Revolving credit agreement maturity date Jul. 01, 2014    
Net profitability test 1,000    
Leverage test of total liabilities to total net worth 1.0    
Current ratio 2.0    
Credit facility's interest rate, Description credit facility’s interest rate is LIBOR plus 3.25% per annum    
Credit facility's interest rate 3.25%    
Commitment fee of the unused portion of the credit 0.30%    
Preferred stock, at redemption value     $ 5,000,000