ConsolidatedBalanceSheet (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	3 Months Ended	9 Months Ended
	Dec. 31, 2010	Dec. 31, 2010
Sales
License and royalties		$ 50,625,000
Net sales		50,625,000
Costs and expenses
Selling, general and administrative		4,442,000
Total costs and expenses		4,442,000
Operating income (loss)		46,183,000
Interest and other income, net		8,000
Income (loss) before provision for income taxes		46,191,000
Income tax provision (benefit)	20,232,000	20,232,000
Net income (loss)	4,823,000	25,959,000
Basic net income (loss) per share		2,230
Shares used in computing basic per share amounts		11,645,000
Diluted net income (loss) per share (in Dollars per share)		$ 2.23
Shares used in computing diluted per share amounts (in Shares)	11,646	11,646
Dividend paid per common share		$ 1,400