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Available-for-Sale Investments with Level 3 Inputs (Detail) (Available-for-sale Securities, USD $)
In Thousands, unless otherwise specified |
9 Months Ended |
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Mar. 31, 2012
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Available-for-sale Securities
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| Schedule of Available-for-sale Securities [Line Items] | |
| Beginning balance | $ 0 |
| Issuance of note receivable | 10,000 |
| Conversion of note receivable to CCXI common stock | (10,000) |
| Ending balance | $ 0 |