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Weighted Average Fair Value Assumptions Table (Detail) (USD $)
3 Months Ended 6 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average fair value of options granted    [1]    [1] $ 3.80    [1]
Option life 0 years [1],[2] 0 years [1],[2] 4 years 6 months [2] 0 years [1],[2]
Risk-free interest rate    [1],[3]    [1],[3] 0.70% [3]    [1],[3]
Stock volatility    [1],[4]    [1],[4] 58.00% [4]    [1],[4]
Dividend rate    [1]    [1] 0.00%    [1]
Stock options granted           
[1] No stock options were granted by the Company during these periods.
[2] The option life was determined based upon historical option activity.
[3] The risk-free interest rate for each grant is equal to the U.S. Treasury yield curve in effect at the time of grant for instruments with a similar expected life.
[4] The stock volatility for each grant is measured using the weighted average of historical daily price changes of the Company's common stock over the most recent period equal to the expected option life of the grant, the historical short-term trend of the option and other factors, such as expected changes in volatility arising from planned changes in the Company's business operations.