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Basis of Presentation and Significant Accounting Policies (Details) (USD $)
9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2011
Sep. 30, 2011
Customer Concentration Risk [Member]
Sep. 30, 2012
Customer Concentration Risk [Member]
Sep. 30, 2011
Customer Concentration Risk [Member]
Sep. 30, 2011
Accounts Receivable [Member]
Sep. 30, 2012
Accounts Receivable [Member]
Sep. 30, 2011
Accounts Receivable [Member]
Significant Accounting Policies                  
Shares issuable, excluding from calculation of diluted earnings per share 4,319,020 3,271,853              
Concentration of credit risk, percentage       15.00% 26.00% 25.00% 20.00% 22.00% 26.00%
Fair value of Interest rate swap hedging liabilities $ 138,359   $ 110,688            
Net gain (loss) attributable to cash flow hedge 27,671 3,678              
Fair value of debt instrument $ 1,082,000   $ 663,000