Accounts Receivable and Significant Concentrations (Details) - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	$ 8,048,652	$ 10,638,491
Less: allowances for doubtful accounts	(81,345)	(73,378)
Accounts receivable, net	7,967,307	10,565,113
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	3,082,678	2,616,702
Government [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	$ 4,965,974	$ 8,021,789