Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Revenue:
Product revenue	$ 48,660	$ 42,609
Funded research and development	151	61
Total Revenue	48,811	42,670
Costs and expenses:
Cost of product revenue	9,689	8,723
Research and development	9,062	7,287
Selling, general and administrative	31,598	27,967
Costs and Expenses, Total	50,349	43,977
Loss from operations	(1,538)	(1,307)
Other income (loss):
Investment income, net	44	16
Other income (loss), net	11	(21)
Nonoperating Income (Expense), Total	55	(5)
Loss before income tax provision	(1,483)	(1,312)
Income tax provision	226	411
Net loss	$ (1,709)	$ (1,723)
Basic net loss per share	$ (0.04)	$ (0.04)
Basic weighted average shares outstanding	40,062	38,678
Diluted net loss per share	$ (0.04)	$ (0.04)
Diluted weighted average shares outstanding	40,062	38,678