Note 8 - Employee Benefit Plans (Detail) - Amounts Recognized in the Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Accrued expenses	$ (5,220)	$ (4,023)
Other non-current liabilities	(1,000)	(2,144)
Accrued retirement benefits	(5,096)	(6,309)
Defined Benefit Retirment Plan [Member]
Other non-current liabilities	(970)	(1,607)
Net amount recognized	(970)	(1,607)
Post Retirment Benefit Plan [Member]
Accrued expenses	(604)
Accrued retirement benefits	(5,096)	(6,309)
Net amount recognized	$ (5,700)	$ (6,309)