Note 10 - Pension Plans (Tables)

3 Months Ended

Jun. 30, 2015

Notes Tables

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended
	June 30,
	2015			2014
	(unaudited)
Service cost	$	26		$	26
Interest cost on projected benefit obligation		368			473
Expected return on plan assets		(438	)		(497	)
Recognized actuarial loss		45			18
Net periodic pension expense	$	1		$	20

Defined Benefit Plan Plan Assets Fair Value [Table Text Block]

	June 30, 2015								March 31, 2015
Description	Level 1		Level 2		Level 3		Total		Level 1		Level 2			Level 3		Total
	(unaudited)								(unaudited)
Cash and cash funds	$	2,798	$	-	$	-	$	2,798	$	2,588	$	-		$	-	$	2,588
Currency contracts		-		38		-		38		-		(30	)		-		(30	)
Equity		20,814		43		14		20,871		19,997		652			7		20,656
Fixed interest		1,042		5,739		-		6,781		861		5,887			1		6,749
Mortgage-backed securities		-		14		-		14		-		16			-		16
Swaps and other		-		82		-		82		2		133			-		135
Total	$	24,654	$	5,916	$	14	$	30,584	$	23,448	$	6,658		$	8	$	30,114