Company and Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	1 Months Ended		12 Months Ended		151 Months Ended
	Dec. 18, 2012	Dec. 31, 2000	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013
Targeted or Tracking Stock, Stock [Line Items]
Incorporation date, year and month		2000-12
Reverse stock split ratio	1-for-6
Highly liquid investments, maturity period maximum			3 months
Estimated life of the intellectual property			14 years
Impairment of intangible assets			$ 0
Share-based compensation expense			1,506,000	511,000	4,297,000
Percentage of likelihood of income tax being sustained			50.00%
Unrecognized tax benefits			$ 0	$ 0	$ 0
Minimum
Targeted or Tracking Stock, Stock [Line Items]
Property and equipment, estimated useful life			3 years
Maximum
Targeted or Tracking Stock, Stock [Line Items]
Property and equipment, estimated useful life			7 years
Two Thousand and Eight Omnibus Plan
Targeted or Tracking Stock, Stock [Line Items]
Shares available for awards under the plan			1,217,239		1,217,239
Two Thousand and Eight Omnibus Plan | Maximum
Targeted or Tracking Stock, Stock [Line Items]
Number of shares issuable under the plan			2,186,000		2,186,000