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Expected Expiry Dates of NOI's (Detail) (United States, USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Federal
 
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforward $ 8,322
Federal | Expiring 2014-2020
 
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforward 678
Federal | Expiring 2026-2032
 
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforward 7,644
State
 
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforward 15,898
State | Expiring 2014-2020
 
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforward 678
State | Expiring 2021-2025
 
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforward 8,572
State | Expiring 2026-2032
 
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforward $ 6,648