Accounts Receivable and Unbilled Accounts Receivable (Details) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	$ 10,638,491	$ 8,631,769
Less: allowances for doubtful accounts	(73,378)	(88,719)
Accounts receivable, net	10,565,113	8,543,050
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	2,616,702	5,328,988
Government [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	$ 8,021,789	$ 3,302,781