Note 6 - Pension and Post-retirement Benefits (Tables)

6 Months Ended

Dec. 31, 2014

Notes Tables

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended						Six Months Ended
	12/31/2014 (Unaudited)			12/31/2013			12/31/2014 (Unaudited)			12/31/2013
Service cost	$	694		$	714		$	1,388		$	1,423
Interest cost		1,722			1,736			3,412			3,451
Expected return on plan assets		(1,772	)		(1,581	)		(3,512	)		(3,143	)
Amortization of prior service cost		-			29			-			58
Amortization of net gain		7			3			14			6
	$	651		$	901		$	1,302		$	1,795

Post Retirement Medical and Life Insurance Plan [Member]

Notes Tables

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended						Six Months Ended
	12/31/2014 (Unaudited)			12/31/2013			12/31/2014 (Unaudited)			12/31/2013
Service cost	$	29		$	89		$	57		$	177
Interest cost		61			132			122			265
Amortization of prior service credit		(200	)		(125	)		(400	)		(251	)
	$	(110	)	$	96		$	(221	)	$	191