Accounts Receivable and Unbilled Accounts Receivables (Tables)

12 Months Ended

Dec. 31, 2012

Accounts Receivable and Unbilled Accounts Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

Accounts receivable consist of the following:

	DECEMBER 31
	2012			2011
Commercial	$	2,546,268		$	2,544,310
Government		4,462,984			5,376,176
Gross accounts receivable		7,009,252			7,920,486
Less: allowances for doubtful accounts		(76,886	)		(61,584	)
Accounts receivable, net	$	6,932,366		$	7,858,902

Schedule Of Unbilled Accounts Receivable [Table Text Block]

Unbilled accounts receivable consist of the following:

	DECEMBER 31
	2012		2011
Commercial	$	1,564,078	$	88,855
Government		1,405,372		2,626,551
Unbilled accounts receivable	$	2,969,450	$	2,715,406