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Stock-Based Compensation Plans - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Remaining available shares for issuance under the plan 6,255,156fac_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSecuritiesRemainingAvailableForFutureIssuanceUnderEquityCompensationPlan    
Stock Option Awards expiry range 5 years    
Vest in designated installments over 4 years    
Stock Option Awards to purchase shares of the company's common stock     2fac_NumberOfEmployeeAwarded
Stock Option Awards granted 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross 825,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Exercise price per share     $ 1.45us-gaap_SaleOfStockPricePerShare
Stock Option Awards expiration date     Jan. 31, 2017
Compensation expense related to Stock Option     $ 522,000us-gaap_DeferredCompensationArrangementWithIndividualAllocatedShareBasedCompensationExpense
Compensation expense related to Stock Option amortized     504,000fac_AmortizationOfDeferredShareBasedCompensationExpense
Remaining Compensation expense amortized through January 2016     18,000fac_DeferredCompensationArrangementWithIndividualShareBasedCompensationExpenseToBeRecognizeInFuture
Fair value of Stock Option Awards with expected volatility     73.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
Risk-free interest rate     0.71%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
Dividend yield rate     0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
Expected term     5 years
Value of options granted per share     $ 0.63fac_ShareBasedCompensationArrangementByShareBasedPaymentAwardWeightedAverageGrantDateFairValue
Risk-free interest rate, duration     5 years
Weighted average remaining contractual life of options outstanding 2 years 4 months 24 days    
Exercisable/vested 2 years 4 months 24 days    
Number of shares vested 75,135fac_NumberOfSharesVestedButSurrenderedForPaymentOfMinimumTaxWithholdingObligations    
Compensation expense to purchase shares under the ESPP 185,000us-gaap_AllocatedShareBasedCompensationExpense 243,000us-gaap_AllocatedShareBasedCompensationExpense 604,000us-gaap_AllocatedShareBasedCompensationExpense
Employee Stock Purchase Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of authorize payroll deductions 15.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_EmployeeStockMember		    
Maximum Amount of outstanding stock to be subscribed 25,000fac_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesValue
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_EmployeeStockMember		    
Company reserved shares of common stock for issuance under the ESPP 400,000us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_EmployeeStockMember		    
Employees purchase shares 31,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_EmployeeStockMember		 35,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_EmployeeStockMember		 40,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_EmployeeStockMember
Compensation expense to purchase shares under the ESPP 11,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_EmployeeStockMember		 7,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_EmployeeStockMember		 11,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_EmployeeStockMember
Shares remain available for issuance under the ESPP 87,635us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_EmployeeStockMember		    
Executive Officer One [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock Option Awards granted     750,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_TitleOfIndividualAxis
= fac_ExecutiveOfficerOneMember
Vesting percent of shares     40.00%fac_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRemainingVestingPercentage
/ us-gaap_TitleOfIndividualAxis
= fac_ExecutiveOfficerOneMember
Remainder vesting in equal installments     3 years
Executive Officer Two [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock Option Awards granted     75,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_TitleOfIndividualAxis
= fac_ExecutiveOfficerTwoMember
Vesting percent of shares     20.00%fac_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRemainingVestingPercentage
/ us-gaap_TitleOfIndividualAxis
= fac_ExecutiveOfficerTwoMember
Remainder vesting in equal installments     4 years
Employee Stock Options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock Option Awards expiry range 10 years    
Vest in designated installments over 5 years    
Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted Stock Awards granted 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember		 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember		 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
Aggregate fair values of Restricted Stock Awards vested $ 54,000fac_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodActualFairValueVestingDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember		 $ 99,000fac_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodActualFairValueVestingDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember		 $ 134,000fac_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodActualFairValueVestingDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember