Note 13 - Comprehensive Income and Accumulated Other Comprehensive Income (Loss) (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 31, 2011
Other Comprehensive Income (Loss), Minimum Pension Liability Net Adjustment, Tax	$ 7,190	$ 7,186
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	$ 0	$ 0