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Significant Accounting Policies (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Cash and Cash Equivalents      
Number of institutions in which the company has cash deposits 2    
Accounts Receivable and Allowance For Doubtful Accounts      
Unbilled amounts included in accounts receivable 118,088 299,298  
Allowance for doubtful accounts 0 0  
Dell, Inc.
     
Concentrations of credit risks      
Receivables, classified as collateralized receivables 1,299,283    
Sales revenue | Customer concentration | Dell, Inc.
     
Concentrations of credit risks      
Concentration risk (as a percent) 55.00% 62.00% 80.00%
Accounts receivable | Dell Inc. and its affiliates
     
Concentrations of credit risks      
Accounts receivable 324,000 4,189,388 7,240,452