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Accounts Receivable and Unbilled Accounts Receivables
 12 Months Ended
Dec. 31, 2014
Accounts Receivable and Unbilled Accounts Receivable [Abstract]  
Accounts Receivable and Unbilled Account Receivables [Text Block]
5. Accounts Receivable and Unbilled Accounts Receivables
 
Accounts receivable consist of the following:
 
 
 
DECEMBER 31,
 
 
 
2014
 
2013
 
 
 
 
 
 
 
 
 
Commercial
 
$
5,328,988
 
$
2,782,179
 
Government
 
 
3,302,781
 
 
4,860,259
 
Gross accounts receivable
 
 
8,631,769
 
 
7,642,438
 
Less: allowances for doubtful accounts
 
 
(88,719)
 
 
(30,038)
 
 
 
 
 
 
 
 
 
Accounts receivable, net
 
$
8,543,050
 
$
7,612,400
 
 
For the years ended December 31, 2014, 2013 and 2012, the Company had no material recoveries of accounts receivable for which an allowance had been previously established.
 
Unbilled accounts receivable consist of the following:
 
 
 
DECEMBER 31,
 
 
 
2014
 
2013
 
 
 
 
 
 
 
 
 
Commercial
 
$
550,590
 
$
435,230
 
Government
 
 
4,996,826
 
 
1,125,800
 
 
 
 
 
 
 
 
 
Unbilled accounts receivable
 
$
5,547,416
 
$
1,561,030