Note 10 - Pension Plans (Tables)

9 Months Ended

Dec. 31, 2015

Notes Tables

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended						Nine Months Ended
	December 31,						December 31,
	2015			2014			2015			2014
	(unaudited)						(unaudited)
Service cost	$	25		$	26		$	76		$	78
Interest cost on projected benefit obligation		364			443			1,103			1,383
Expected return on plan assets		(432	)		(469	)		(1,312	)		(1,460	)
Recognized actuarial loss		44			17			134			53
Net periodic pension expense	$	1		$	17		$	1		$	54

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

	December 31, 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	$	1,608	$	-		$	-	$	1,608		$	2,588	$	-		$	-	$	2,588
Currency contracts		-		(72	)		-		(72	)		-		(30	)		-		(30	)
Equity		4,011		-			-		4,011			19,997		652			7		20,656
Fixed interest		1,173		12,470			1		13,644			861		5,887			1		6,749
Mutual funds		-		8,948			-		8,948			-		-			-		-
Mortgage-backed securities		-		34			-		34			-		16			-		16
Swaps and other		-		233			-		233			2		133			-		135
Total	$	6,792	$	21,613		$	1	$	28,406		$	23,448	$	6,658		$	8	$	30,114