Note L - Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Effective Income Tax Rate		32.70%	29.80%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate		34.00%
Unrecognized Tax Benefits (in Dollars)				$ 667
Unrecognized Tax Benefits, Period Increase (Decrease) (in Dollars)	198
Recognized Tax Benefit (in Dollars)	$ 369
Effective Income Tax Rate, Continuing Operations	6.00%