Quarterly report pursuant to Section 13 or 15(d)

Marketable Securities (Schedule Of Marketable Securities) (Details)

v2.4.0.8
Marketable Securities (Schedule Of Marketable Securities) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Marketable Securities [Line Items]    
Cost $ 18,250 $ 13,250
Gross Unrealized Gains 0 0
Gross Unrealized Losses (21) (17)
Available-for-sale Securities 18,229 13,233
Certificates Of Deposit
   
Marketable Securities [Line Items]    
Cost 18,250 13,250
Gross Unrealized Gains 0 0
Gross Unrealized Losses (21) (17)
Available-for-sale Securities $ 18,229 $ 13,233