Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Restricted Stock and Units) (Details)

v2.4.1.9
Stock-Based Compensation (Restricted Stock and Units) (Details) (USD $)
12 Months Ended 3 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Nonvested at beginning of the year, Shares 581,709us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber    
Granted, Shares 402,648us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross    
Vested, Shares (213,295)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod    
Forfeited, Shares (60,059)us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited    
Nonvested at end of the year, Shares 711,003us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber 581,709us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber 711,003us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Nonvested at beginning of the year, Weighted-Average Grant Date Fair Value $ 4.81us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue    
Granted, Weighted-Average Grant Date Fair Value $ 3.76us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue    
Vested, Weighted-Average Grant Date Fair Value $ (7.83)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue $ (6.74)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue  
Forfeited, Weighted-Average Grant Date Fair Value $ 5.22us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue    
Nonvested at end of the year, Weighted-Average Grant Date Fair Value $ 2.81us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue $ 4.81us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue $ 2.81us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
Nonvested, Average Remaining Vesting Period 1 year 8 months 12 days 1 year 5 months 9 days  
Granted, Average Remaining Vesting Period 2 years 5 months 23 days    
Nonvested at beginning of the period, Aggregate Intrinsic Value $ 2,660,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedIntrinsicValue    
Granted, Aggregate Instrinsic Value $ 721,000us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross    
Aggregate fair value of restricted stock and restricted stock units vested 1,700,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue 1,100,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue  
Chief Financial Officer [Member]      
Class of Stock [Line Items]      
Stock Issued During Period, Value, New Issues     75,000us-gaap_StockIssuedDuringPeriodValueIssuedForServices
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= us-gaap_ChiefFinancialOfficerMember
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Granted, Shares     41,899us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefFinancialOfficerMember
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Granted, Average Remaining Vesting Period     3 years
Granted, Aggregate Instrinsic Value     $ 75,000us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross
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= us-gaap_ChiefFinancialOfficerMember