Note 10 - Pension Plans (Tables)

6 Months Ended

Sep. 30, 2016

Notes Tables

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended						Six Months Ended
	September 30,						September 30,
	2016			2015			2016			2015
	(unaudited)						(unaudited)
Service cost	$	28		$	25		$	56		$	51
Interest cost on projected benefit obligation		326			371			678			739
Expected return on plan assets		(296	)		(442	)		(619	)		(880	)
Recognized actuarial loss		44			45			92			90
Net periodic pension expense	$	102		$	(1	)	$	207		$	-

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

	September 30, 2016						March 31, 2016
Description	Level 1		Level 2		Total		Level 1		Level 2		Total
	(unaudited)						(unaudited)
Cash and cash funds	$	39	$	-		39	$	121	$	-	$	121
Equity		423		-		423		351		-		351
Fixed interest		1,244		91		1,335		1,225		96		1,321
Mutual funds		13,908		13,626		27,534		13,527		13,394		26,921
Total	$	15,614	$	13,717		29,331	$	15,224	$	13,490	$	28,714