Note 6 - Employee Benefit and Retirement Plans (Details) - Net Periodic Benefit Costs For Defined Benefit Pension Plans (Pension Plan, Defined Benefit [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Pension Plan, Defined Benefit [Member]
Note 6 - Employee Benefit and Retirement Plans (Details) - Net Periodic Benefit Costs For Defined Benefit Pension Plans [Line Items]
Service cost	$ 709	$ 738
Interest cost	1,715	1,494
Expected return on plan assets	(1,562)	(1,602)
Amortization of prior service cost	29	59
Amortization of net loss	3
	$ 894	$ 689