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OTHER REAL ESTATE OWNED (Schedule of Activity in Valuation Allowance) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
OTHER REAL ESTATE OWNED [Abstract]      
Balance, beginning of year $ 2,020pgc_ValuationAllowanceRealEstateOwned $ 1,010pgc_ValuationAllowanceRealEstateOwned $ 865pgc_ValuationAllowanceRealEstateOwned
Additions charged to expense 400pgc_ValuationAllowanceRealEstateOwnedAdditionsChargedToExpense 1,010pgc_ValuationAllowanceRealEstateOwnedAdditionsChargedToExpense 145pgc_ValuationAllowanceRealEstateOwnedAdditionsChargedToExpense
Direct writedowns         
Balance, end of year $ 2,420pgc_ValuationAllowanceRealEstateOwned $ 2,020pgc_ValuationAllowanceRealEstateOwned $ 1,010pgc_ValuationAllowanceRealEstateOwned