XML 28 R52.htm IDEA: XBRL DOCUMENT v2.4.0.6
Marketable Securities (Details) (USD $)
Sep. 30, 2012
Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]    
Fair value $ 13,382,000 $ 12,983,000
AOCI Unrealized Holding Gain 399,000 [1]  
Fair value 13,382,000 12,983,000
Other Liquid Assets 178,000  
Bonds [Member]
   
Schedule of Available-for-sale Securities [Line Items]    
Fair value 9,085,000 [2] 8,810,000 [2]
AOCI Unrealized Holding Gain 275,000 [1],[2]  
Fair value 9,085,000 [2] 8,810,000 [2]
Mutual Funds [Member]
   
Schedule of Available-for-sale Securities [Line Items]    
Fair value 4,297,000 4,173,000
AOCI Unrealized Holding Gain 124,000 [1]  
Fair value $ 4,297,000 $ 4,173,000
[1] Accumulated Other Comprehensive Income
[2] Various maturity dates from December 2014 – January 2017. Includes $178,000 of Other Liquid Assets.