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Employee Benefit Plans - Additional information (Detail) (USD $) | 12 Months Ended | 1 Months Ended
--- | --- | ---
Jun. 30, 2012 Year | Jun. 30, 2011 | Jan. 01, 2004 First Contributions | Jan. 01, 2004 Next Contributions
Defined Contribution Plan Disclosure [Line Items] |  |  |  |
Employer contribution plan of participant contribution |  |  | 100.00% | 50.00%
Participant's compensation contribution |  |  | 3.00% | 2.00%
Total contributions under profit sharing plan | $ 183,000 |  |  |
Premiums of health care benefits expensed | $ 843,000 | $ 754,000 |  |
Years prior to retirement used to determine employee benefit under defined benefit pension plan | 5 |  |  |
Weighted-average discount rate used in determining projected benefit obligations for defined benefit pension plan | 5.50% | 5.50% |  |

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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
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- Definition The interest rate used to adjust for the time value of money. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph j -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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