XML 111 R82.htm IDEA: XBRL DOCUMENT v2.4.1.9
STOCK COMPENSATION EXPENSE, Authorized Stock Options By Exercise Price Range (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Share-based Compensation, Shares Granted under Stock Option Plans, Exercise Price Range [Line Items]  
Outstanding, Number (in shares) 273,942us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
Outstanding, Weighted Average Exercise Price (in dollars per share) $ 11.06us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
Outstanding, Aggregate Intrinsic Value $ 1,248us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
Currently Exercisable, Number (in shares) 168,523us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
Currently Exercisable, Weighted Average Remaining Contractual Life 4 years 7 months 6 days
Currently Exercisable, Weighted Average Exercise Price (in dollars per share) $ 10.67us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
Currently Exercisable, Aggregate Intrinsic Value 838us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
$6.50 to $10.00 [Member]  
Share-based Compensation, Shares Granted under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, lower range limit (in dollars per share) $ 6.50us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member650To1000Member
Range of Exercise Prices, upper range limit (in dollars per share) $ 10.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member650To1000Member
Outstanding, Number (in shares) 114,482us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member650To1000Member
Outstanding, Weighted Average Exercise Price (in dollars per share) $ 7.56us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member650To1000Member
Outstanding, Aggregate Intrinsic Value 919us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member650To1000Member
Currently Exercisable, Number (in shares) 86,623us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member650To1000Member
Currently Exercisable, Weighted Average Remaining Contractual Life 6 years 2 months 12 days
Currently Exercisable, Weighted Average Exercise Price (in dollars per share) $ 7.58us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member650To1000Member
Currently Exercisable, Aggregate Intrinsic Value 693us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member650To1000Member
$10.01 to $12.50 [Member]  
Share-based Compensation, Shares Granted under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, lower range limit (in dollars per share) $ 10.01us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1001To1250Member
Range of Exercise Prices, upper range limit (in dollars per share) $ 12.50us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1001To1250Member
Outstanding, Number (in shares) 43,000us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1001To1250Member
Outstanding, Weighted Average Exercise Price (in dollars per share) $ 11.39us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1001To1250Member
Outstanding, Aggregate Intrinsic Value 180us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1001To1250Member
Currently Exercisable, Number (in shares) 11,740us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1001To1250Member
Currently Exercisable, Weighted Average Remaining Contractual Life 8 years 2 months 12 days
Currently Exercisable, Weighted Average Exercise Price (in dollars per share) $ 11.39us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1001To1250Member
Currently Exercisable, Aggregate Intrinsic Value 49us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1001To1250Member
$12.51 to $15.00 [Member]  
Share-based Compensation, Shares Granted under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, lower range limit (in dollars per share) $ 12.51us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1251To1500Member
Range of Exercise Prices, upper range limit (in dollars per share) $ 15.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1251To1500Member
Outstanding, Number (in shares) 92,960us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1251To1500Member
Outstanding, Weighted Average Exercise Price (in dollars per share) $ 13.98us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1251To1500Member
Outstanding, Aggregate Intrinsic Value 149us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1251To1500Member
Currently Exercisable, Number (in shares) 46,660us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1251To1500Member
Currently Exercisable, Weighted Average Remaining Contractual Life 2 years 7 months 6 days
Currently Exercisable, Weighted Average Exercise Price (in dollars per share) $ 13.53us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1251To1500Member
Currently Exercisable, Aggregate Intrinsic Value 96us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1251To1500Member
$15.01 to $17.50 [Member]  
Share-based Compensation, Shares Granted under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, lower range limit (in dollars per share) $ 15.01us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1501To1750Member
Range of Exercise Prices, upper range limit (in dollars per share) $ 17.50us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1501To1750Member
Outstanding, Number (in shares) 23,500us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1501To1750Member
Outstanding, Weighted Average Exercise Price (in dollars per share) $ 16.00us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1501To1750Member
Outstanding, Aggregate Intrinsic Value 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1501To1750Member
Currently Exercisable, Number (in shares) 23,500us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1501To1750Member
Currently Exercisable, Weighted Average Remaining Contractual Life 1 year 1 month 6 days
Currently Exercisable, Weighted Average Exercise Price (in dollars per share) $ 16.00us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1501To1750Member
Currently Exercisable, Aggregate Intrinsic Value $ 0us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= pfbi_Member1501To1750Member