Note G - Accumulated Other Comprehensive Income (Details) - Changes in AOCI (Parentheticals) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended	12 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Other Comprehensive Income (Loss) [Member]	Jun. 30, 2013 Other Comprehensive Income (Loss) [Member]	Sep. 30, 2013 Other Comprehensive Income (Loss) [Member]	Dec. 31, 2012 Other Comprehensive Income (Loss) [Member]	Sep. 30, 2013 OCI Before Reclassifications [Member]	Sep. 30, 2013 OCI Before Reclassifications [Member]	Sep. 30, 2013 Amounts Reclassified from AOCI [Member]	Sep. 30, 2013 Amounts Reclassified from AOCI [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax (in Dollars)	$ 1,575	$ 601	$ 2,981	$ 1,673	$ 3,415	$ 3,219	$ 3,415	$ 2,592	$ 195	$ 814	$ 1	$ 9