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Note U - Comprehensive Income
6 Months Ended
Jun. 30, 2011
Comprehensive Income (Loss) Note [Text Block]
Note U – Comprehensive Income

Comprehensive income for the three- and six-month periods ended June 30, 2011, including unrealized gain on marketable securities of $494 and $412, was $24,189 and $41,959, respectively. Comprehensive income for the comparable periods ended June 30, 2010 including unrealized gain on marketable securities of $436 and $656, was $20,235 and $35,840, respectively.