Segment and Geographic Information (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
Segment and Geographic Information [Abstract]
Number of operating segments									2
Number of reportable segments									2
Finished goods inventory on consignment	$ 300,000				$ 800,000				$ 300,000	$ 800,000
Financial information for two reportable segments [Abstract]
Revenues									80,573,235	103,436,868	63,720,885
Cost of revenues and royalties									37,894,451	42,703,331	22,891,534
Gross profit (loss)									42,678,784	60,733,537	40,829,351
Operating expenses									48,670,189	49,995,855	50,020,936
(Loss) income from operations									(5,991,405)	10,737,682	(9,191,585)
Assets	168,828,682				178,061,480				168,828,682	178,061,480
Inventories	21,584,907				21,175,754				21,584,907	21,175,754
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	23,428,000	18,475,000	19,670,000	19,000,000	22,962,000	46,054,000	16,265,000	18,156,000	80,573,235	103,436,868	63,720,885
Long-Lived Assets	35,885,000				36,713,000				35,885,000	36,713,000	37,165,000
Consumer product revenues					3,554,110				3,085,882	3,554,110	0
Inventory charge related to excess consumer product inventory									3,800,000	0	0
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									43,696,000	73,466,000	36,654,000
Long-Lived Assets	35,760,000				36,549,000				35,760,000	36,549,000	37,086,000
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									13,758,000	9,434,000	9,899,000
Long-Lived Assets	81,000				107,000				81,000	107,000	0
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									6,654,000	5,010,000	5,317,000
Long-Lived Assets	0				0				0	0	0
Middle East [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									3,845,000	3,767,000	2,108,000
Long-Lived Assets	0				0				0	0	0
Asia / Pacific Rim [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									2,813,000	3,302,000	1,746,000
Long-Lived Assets	0				0				0	0	0
South and Central America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									2,958,000	3,260,000	3,288,000
Long-Lived Assets	0				0				0	0	0
Australia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									3,469,000	3,022,000	2,839,000
Long-Lived Assets	0				0				0	0	0
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									3,380,000	2,176,000	1,870,000
Long-Lived Assets	44,000				57,000				44,000	57,000	79,000
Professional Product Segment [Member]
Financial information for two reportable segments [Abstract]
Revenues									77,487,353	99,882,758	63,720,885
Cost of revenues and royalties									31,313,699	39,436,166	22,755,797
Gross profit (loss)									46,173,654	60,446,592	40,965,088
Operating expenses									45,367,516	46,402,221	42,261,837
(Loss) income from operations									806,138	14,044,371	(1,296,749)
Assets	167,400,000				171,700,000				167,400,000	171,700,000
Consumer Product Segment [Member]
Financial information for two reportable segments [Abstract]
Revenues									3,085,882	3,554,110	0
Cost of revenues and royalties									6,580,752	3,267,165	135,737
Gross profit (loss)									(3,494,870)	286,945	(135,737)
Operating expenses									3,302,673	3,593,634	7,759,099
(Loss) income from operations									(6,797,543)	(3,306,689)	(7,894,836)
Assets	1,400,000				6,300,000				1,400,000	6,300,000
Inventories	$ 700,000				$ 5,300,000				$ 700,000	$ 5,300,000