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Share-Based Payment Arrangements (Details 2) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Number of Options Outstanding, Beginning 7,544,432us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber  
Number of Options, Granted 30,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross  
Number of Options, Exercised (18,150)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised  
Number of Options, Forfeited (1,931,801)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod  
Number of Options, Expired (157,545)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod  
Number of Options Outstanding, Ending 5,466,936us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber 7,544,432us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Number of Options, Exercisable 4,187,071us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber  
Number of Options, Expected to Vest after end of period 895,906falc_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsExpectedtoVestOutstandingNumber  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]    
Weighted Average Exercise Price, Outstanding, Beginning $ 4.16us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice  
Weighted Average Exercise Price, Granted $ 1.19us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice  
Weighted Average Exercise Price, Exercised $ 1.36us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice  
Weighted Average Exercise Price, Forfeited $ 4.56us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice  
Weighted Average Exercise Price, Expired $ 6.95us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice  
Weighted Average Exercise Price, Outstanding, Ending $ 3.93us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice $ 4.16us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Weighted Average Exercise Price, Exercisable $ 4.62us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice  
Weighted Average Exercise Price, Expected to Vest After End of Period $ 1.69falc_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsExpectedtoVestOutstandingWeightedAverageExercisePrice  
Weighted Average Remaining Contractual Life (in years), Outstanding 5 years 6 months 4 days 6 years 3 months 11 days
Weighted Average Remaining Contractual Life (in years), Exercisable 4 years 8 months 26 days  
Weighted Average Remaining Contractual Life (in years), Expected to Vest after end of period 8 years 0 months 18 days  
Aggregate Intrinsic Value, Outstanding $ 7,350us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue $ 3,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
Aggregate Intrinsic Value, Exercisable 941us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1  
Aggregate Intrinsic Value, Expected to Vest $ 4,487falc_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsExpectedtoVestOutstandingAggregateIntrinsicValue