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Significant Accounting Policies (Narrative) (Detail) (USD $) | 3 Months Ended | 6 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 | Dec. 31, 2011 | Jun. 30, 2012 | Dec. 31, 2011 | Jun. 30, 2011 | Jun. 30, 2010
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated other comprehensive income attributable to foreign currency translation | $ 950,000 |  |  |  |  |  | $ 1,400,000 |  |  |  |  |  | $ 950,000 |  |  | $ 1,400,000 |  |
Interest-bearing cash equivalent | 4,300,000 |  |  |  |  |  |  |  |  |  |  |  | 4,300,000 |  |  |  |  |
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
Estimated useful lives of assets |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |
Impairment of intangible assets |  |  | 14,800,000 |  |  |  |  |  |  |  |  | (14,830,000) | 14,830,000 |  | 14,800,000 |  |  |
Collaborative research and development revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,300,000 |  |
Tax benefit to be recognized for any tax position |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  |
Durasert And BioSilicon |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Finite life intangible assets amortization period |  |  |  |  |  |  |  |  |  |  |  |  | 12 years |  |  |  |  |
Pfizer | Customer Concentrations of Risk |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  | 754,000.0 |  |  | 3.3 |  |
Percentage of total revenues |  |  |  |  |  |  |  |  |  |  |  |  | 21.00% |  |  | 67.00% |  |
Bausch and Lomb | Customer Concentrations of Risk |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  | 1.4 |  |  | 1.4 |  |
Percentage of total revenues |  |  |  |  |  |  |  |  |  |  |  |  | 41.00% |  |  | 27.00% |  |
Alimera | Customer Concentrations of Risk |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 22.3
Percentage of total revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 97.00%
[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).

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