Accounts Receivable and Unbilled Accounts Receivable (Schedule of Accounts Receivable) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	$ 7,642,438	$ 7,009,252
Less: allowances for doubtful accounts	(30,038)	(76,886)
Accounts receivable, net	7,612,400	6,932,366
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	2,782,179	2,546,268
Government [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	$ 4,860,259	$ 4,462,984