Annual report pursuant to Section 13 and 15(d)

Marketable Securities Schedule Of Marketable Securities (Details)

v2.4.1.9
Marketable Securities Schedule Of Marketable Securities (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Marketable Securities [Line Items]    
Cost $ 23,500us-gaap_AvailableForSaleSecuritiesAmortizedCost $ 13,250us-gaap_AvailableForSaleSecuritiesAmortizedCost
Gross Unrealized Gains 0us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains 0us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains
Gross Unrealized Losses (14)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss (17)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss
Available-for-sale Securities 23,486us-gaap_AvailableForSaleSecurities 13,233us-gaap_AvailableForSaleSecurities
Certificates of Deposit    
Marketable Securities [Line Items]    
Cost 23,500us-gaap_AvailableForSaleSecuritiesAmortizedCost
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CertificatesOfDepositMember
13,250us-gaap_AvailableForSaleSecuritiesAmortizedCost
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CertificatesOfDepositMember
Gross Unrealized Gains 0us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CertificatesOfDepositMember
0us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CertificatesOfDepositMember
Gross Unrealized Losses (14)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CertificatesOfDepositMember
(17)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CertificatesOfDepositMember
Available-for-sale Securities $ 23,486us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CertificatesOfDepositMember
$ 13,233us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CertificatesOfDepositMember