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

6 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Changes in Projected Benefit Obligations [Table Text Block]

Reconciliation of Funded Status of U.S. Defined Benefit Pension Plan as of December 31, 2016
Benefit obligation as of June 30, 2016	$	130,863
Service cost		1,405
Interest cost		2,457
Benefits paid		(2,374	)
Actuarial (gain)/loss		(8,443	)
Benefit obligation prior to curtailment		123,908
Effect of curtailment		(4,170	)
Benefit obligation as of December 31, 2016		119,738
Fair value of assets		80,989
Funded status as of December 31, 2016	$	(38,749	)

Post Retirement Medical and Life Insurance Plan [Member]

Notes Tables

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended						Six Months Ended
	12/31/2016 (Unaudited)			12/31/2015			12/31/2016 (Unaudited)			12/31/2015
Service cost	$	24		$	27		$	47		$	53
Interest cost		68			72			136			144
Amortization of prior service credit		(169	)		(196	)		(337	)		(391	)
Amortization of net loss		30			3			60			7
	$	(47	)	$	(94	)	$	(94	)	$	(187	)

Pension Plan [Member]

Notes Tables

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended						Six Months Ended
	12/31/2016 (Unaudited)			12/31/2015			12/31/2016 (Unaudited)			12/31/2015
Service cost	$	614		$	715		$	1,405		$	1,429
Interest cost		1,533			1,759			3,085			3,527
Expected return on plan assets		(1,288	)		(1,585	)		(2,594	)		(3,179	)
Amortization of net loss		68			12			96			26
	$	927		$	901		$	1,992		$	1,803