Accounts Receivable and Unbilled Accounts Receivable (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	$ 6,207,066	$ 7,642,438
Less: allowances for doubtful accounts	(29,794)	(30,038)
Accounts receivable, net	6,177,272	7,612,400
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	3,421,872	2,782,179
Government [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	$ 2,785,194	$ 4,860,259