Note 7 - Pension and Post Retirement Benefits (Tables)

6 Months Ended

Dec. 31, 2012

Pension Plans, Defined Benefit [Member]

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended						Six Months Ended
	12/31/2012			12/31/2011			12/31/2012			12/31/2011
Service cost	$	738		$	572		$	1,476		$	1,147
Interest cost		1,493			1,650			2,987			3,314
Expected return on plan assets		(1,406	)		(1,656	)		(3,008	)		(3,308	)
Amortization of prior service cost		58			58			117			117
Amortization of net gain		-			(1	)		-			(2	)
	$	883		$	623		$	1,572		$	1,268

Postretirement Medical Plan [Member]

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended						Six Months Ended
	12/31/2012			12/31/2011			12/31/2012			12/31/2011
Service cost	$	128		$	96		$	256		$	192
Interest cost		137			156			273			312
Amortization of prior service credit		(93	)		(227	)		(372	)		(453	)
Amortization of accumulated loss		39			5			79			10
	$	211		$	30		$	236		$	61