XML 69 R59.htm IDEA: XBRL DOCUMENT v2.4.1.9
Stock Compensation (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Sep. 24, 2009
Restricted Stock Award and Restricted Stock Units Weighted Average [Roll Forward]        
Share-based compensation $ 491,000us-gaap_ShareBasedCompensation $ 2,208,000us-gaap_ShareBasedCompensation $ 3,036,000us-gaap_ShareBasedCompensation  
Common Class A        
Restricted Stock Award and Restricted Stock Units Weighted Average [Roll Forward]        
Fair value inputs, discount rate 11.50%us-gaap_FairValueInputsDiscountRate
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
11.00%us-gaap_FairValueInputsDiscountRate
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
   
Fair value inputs, discount for lack of marketability 25.00%us-gaap_FairValueInputsDiscountForLackOfMarketability
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
     
Minority interest discount 20.00%emax_MinorityInterestDiscount
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
     
Restricted Stock        
Restricted Stock Award and Restricted Stock Units Weighted Average [Roll Forward]        
Unrecognized stock based compensation cost 900,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
     
Unrecognized stock based compensation, period for recognition 3 years      
Restricted Stock | Common Class A        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock, capital shares reserved for future issuance       21,737us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
Restricted Stock Award and Restricted Stock Units [Roll Forward]        
Granted 1,100us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
1,600us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
   
Restricted Stock and Restricted Stock Units        
Restricted Stock Award and Restricted Stock Units Weighted Average [Roll Forward]        
Vesting period 4 years      
Restricted Stock and Restricted Stock Units | Selling, General and Administrative Expenses        
Restricted Stock Award and Restricted Stock Units Weighted Average [Roll Forward]        
Share-based compensation $ 500,000us-gaap_ShareBasedCompensation
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
$ 2,200,000us-gaap_ShareBasedCompensation
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
$ 3,000,000us-gaap_ShareBasedCompensation
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
 
Restricted Stock and Restricted Stock Units | Common Class A        
Restricted Stock Award and Restricted Stock Units [Roll Forward]        
Outstanding at December 31, 2013 2,675us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
     
Granted 1,100us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
     
Vested (988)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
     
Forfeited (25)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
     
Outstanding at December 31, 2014 2,762us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
2,675us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
   
Restricted Stock Award and Restricted Stock Units Weighted Average [Roll Forward]        
Outstanding at December 31, 2013 $ 512us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
     
Granted $ 395us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
$ 453us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
$ 784us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
 
Vested $ 547us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
     
Forfeited $ 577us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
     
Outstanding at Decemver 31, 2014 $ 452us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
$ 512us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= emax_RestrictedStockandRestrictedStockUnitsMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
   
Restricted Stock Units (RSUs) | Common Class A        
Restricted Stock Award and Restricted Stock Units [Roll Forward]        
Granted 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember