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Segment and Geographic Area Information (Geographic Area Information) (Detail) (USD $)
 3 Months Ended 12 Months Ended
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2010
Sep. 30, 2010
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2010
Schedule Of Geographical Information [Line Items]                      
Consolidated $ 335,000       $ 123,000       $ 335,000 $ 123,000  
Revenues 699,000 538,000 630,000 [1] 1,659,000 [2] 3,715,000 [3] 360,000 414,000 476,000 3,526,000 [1],[2] 4,965,000 [3] 23,053,000
United States
                      
Schedule Of Geographical Information [Line Items]                      
Revenues                 2,385,000 4,882,000 22,932,000
United Kingdom
                      
Schedule Of Geographical Information [Line Items]                      
Revenues                 1,141,000 83,000 121,000
United States
                      
Schedule Of Geographical Information [Line Items]                      
Consolidated 57,000       62,000       57,000 62,000  
United Kingdom
                      
Schedule Of Geographical Information [Line Items]                      
Consolidated $ 278,000       $ 61,000       $ 278,000 $ 61,000  
[1] Results for the second quarter of fiscal 2012 included a $14.8 million impairment write-down of finite-lived intangible assets (see Note 4).
[2] Results for the first quarter of fiscal 2012 included $1.1 million of revenue related to the termination of a field-of-use license by Intrinsiq (see Note 3)
[3] Results for the fourth quarter of fiscal 2011 included $3.3 million of revenue related to a material modification of the Pfizer collaborative research and license agreement in June 2011 (see Note 3).