CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Revenues:
Product sales, net	$ 10,510us-gaap_SalesRevenueGoodsNet	$ 6,383us-gaap_SalesRevenueGoodsNet
Research and development income	51	313
Licensing, royalty and other revenue	110	157
Total revenues	10,671us-gaap_Revenues	6,853us-gaap_Revenues
Costs and Expenses:
Cost of revenues	5,043us-gaap_CostOfGoodsSold	3,987us-gaap_CostOfGoodsSold
Selling, general and administrative expenses	1,900	1,282
Product development and research expenses	2,630us-gaap_ResearchAndDevelopmentExpense	1,365us-gaap_ResearchAndDevelopmentExpense
Total costs and expenses	9,573us-gaap_CostsAndExpenses	6,634us-gaap_CostsAndExpenses
Operating income	1,098us-gaap_OperatingIncomeLoss	219us-gaap_OperatingIncomeLoss
Other Income (Expense):
Change in the fair value of derivative liability	8,625us-gaap_UnrealizedGainLossOnDerivatives	0us-gaap_UnrealizedGainLossOnDerivatives
Interest and other expense, net	(3,168)us-gaap_InterestIncomeExpenseNet	(52)us-gaap_InterestIncomeExpenseNet
Income before income tax expense	6,555	167
Income tax expense	0us-gaap_IncomeTaxExpenseBenefit	0us-gaap_IncomeTaxExpenseBenefit
Net income	$ 6,555us-gaap_NetIncomeLoss	$ 167us-gaap_NetIncomeLoss
Basic earnings per share	$ 0.12us-gaap_EarningsPerShareBasic	$ 0us-gaap_EarningsPerShareBasic
Diluted earnings per share	$ 0.01us-gaap_EarningsPerShareDiluted	$ 0us-gaap_EarningsPerShareDiluted
Weighted average shares of common stock outstanding:
Basic (in shares)	52,841,900	46,826,733
Diluted (in shares)	67,210,177	48,529,603

Revenue earned during the period relating to consideration received from another party for the right to use, but not own, certain of the entity's intangible assets and from the leasing or otherwise lending to a third party the entity's rights or title to certain property. An entity may receive licensing fees for licenses that also generate royalty payments to the entity. Also includes other revenue.

No definition available.