Note 6 - Pension and Post Retirement Benefits (Detail) - Net periodic benefit costs for defined benefit pension plans (Pension Plans, Defined Benefit [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Pension Plans, Defined Benefit [Member]
Service cost	$ 738	$ 575
Interest cost	1,494	1,664
Expected return on plan assets	(1,602)	(1,652)
Amortization of prior service cost	59	59
Amortization of net gain		(1)
	$ 689	$ 645