12. Segment Information (Details) (USD $)	3 Months Ended	9 Months Ended
Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenues
India	$ 7,515,946	$ 2,023,165	$ 30,578,021	$ 6,547,971
North America	49,171,964	51,385,037	92,882,612	135,335,873
Total revenues	56,687,910	53,408,202	123,460,633	141,883,844
Cost of goods sold
India	6,943,285	1,937,563	26,576,296	6,771,935
North America	46,709,049	53,733,287	89,850,780	141,654,009
Total cost of goods sold	53,652,334	55,670,850	116,427,076	148,425,944
Gross profit/(loss)
India	572,661	85,602	4,001,725	(223,964)
North America	2,462,915	(2,348,250)	3,031,832	(6,318,136)
Total gross profit/(loss)	$ 3,035,576	$ (2,262,648)	$ 7,033,557	$ (6,542,100)