Accounts Receivable and Unbilled Accounts Receivable (Details) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	$ 9,693,493	$ 8,631,769
Less: allowances for doubtful accounts	(147,331)	(88,719)
Accounts receivable, net	9,546,162	8,543,050
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	3,879,248	5,328,988
Government [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	$ 5,814,245	$ 3,302,781