Note 9 - Pension Plans (Tables)

6 Months Ended

Sep. 30, 2015

Notes Tables

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended						Six Months Ended
	September 30,						September 30,
	2015			2014			2015			2014
	(unaudited)						(unaudited)
Service cost	$	25		$	26		$	51		$	52
Interest cost on projected benefit obligation		371			467			739			940
Expected return on plan assets		(442	)		(494	)		(880	)		(991	)
Recognized actuarial loss		45			18			90			36
Net periodic pension expense	$	(1	)	$	17		$	-		$	37

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

	September 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	$	1,157	$	-		$	-	$	1,157		$	2,588	$	-		$	-	$	2,588
Currency contracts		-		(125	)		-		(125	)		-		(30	)		-		(30	)
Equity		3,876		-			-		3,876			19,997		652			7		20,656
Fixed interest		1,101		13,055			1		14,157			861		5,887			1		6,749
Mutual funds		-		9,484			-		9,484			-		-			-		-
Mortgage-backed securities		-		34			-		34			-		16			-		16
Swaps and other		-		249			-		249			2		133			-		135
Total	$	6,134	$	22,697		$	1	$	28,832		$	23,448	$	6,658		$	8	$	30,114