Quarterly Data (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Quarterly Data (Unaudited) [Abstract]
Revenue, Net	$ 12,204,910	$ 11,561,399	$ 10,512,898	$ 12,283,228	$ 11,616,575	$ 8,544,014	$ 11,602,139	$ 10,224,704
Gross Profit	7,932,584	8,074,578	7,252,820	8,521,397	8,297,073	5,886,760	8,085,793	7,219,725	31,781,379	29,489,351	38,486,550
Net Loss	$ (4,316,661)	$ (1,915,281)	$ 2,806,427	$ (5,812,912)	$ (5,513,487)	$ (7,273,070)	$ (9,694,685)	$ (9,549,933)	$ (9,238,427)	$ (32,031,175)	$ (19,923,487)
Basic EPS	$ (0.55)	$ (0.25)	$ 0.42	$ (1.06)	$ (1.00)	$ (1.33)	$ (1.77)	$ (1.75)	$ (1.33)	$ (5.84)	$ (3.94)
Diluted EPS	$ (0.55)	$ (0.25)	$ 0.32	$ (1.06)	$ (1.00)	$ (1.33)	$ (1.77)	$ (1.75)	$ (1.33)	$ (5.84)	$ (3.94)