Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments (Details Textual)

v2.4.0.6
Fair Value of Financial Instruments (Details Textual) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Jun. 30, 2012
Deferred director stock units and phantom stock units liability [Member]
Jul. 02, 2011
Deferred director stock units and phantom stock units liability [Member]
Fair Value of Financial Instruments (Textual) [Abstract]        
Liability, recognized expense     $ 35 $ 393
Fair Value of Financial Instruments (Additional Textual) [Abstract]        
Liability, fair value 298 1,182    
Available-for-sale securities, fair value 30,872 21,832    
Available-for-sale securities, net unrealized holding loss $ 375 $ 492