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Benefit Payments Expected to be Paid (Detail) (USD $)
Jun. 30, 2013
Schedule of Pension Expected Future Benefit Payments [Line Items]  
2014 $ 24,838
2015 27,020
2016 45,135
2017 76,348
2018 95,972
2019-2023 719,463
Defined Benefit Plan, Expected Future Benefit Payments, Total $ 988,776