Note B - Other Comprehensive Income Activity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	$ (5,676,000)	$ (2,017,000)	$ 251,000
Realized losses reclassified into earnings(2)	666,000	526,000
Other comprehensive (loss) income, net of tax(3)	$ (5,010,000)	$ (1,491,000)	$ 251,000