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Operating Leases - Future Minimum Lease Payments under Operating Leases (Detail) (USD $)
Jun. 30, 2014
Leases [Abstract]  
Operating Leases, Future Minimum Payments Due $ 6,619,000
Remainder of 2014 (6 Months Remaining) 356,000
2015 704,000
2016 693,000
2017 693,000
2018 629,000
Thereafter $ 3,544,000