Note 10 Pension Plans (Tables)

9 Months Ended

Dec. 31, 2012

Pension and Other Postretirement Benefits Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended				Nine Months Ended
	December 31,				December 31,
	2012		2011		2012		2011
	(unaudited)				(unaudited)
Service cost	$	25	$	21	$	74	$	63
Interest cost on projected benefit obligation		478		501		1,417		1,538
Expected return on plan assets		(385)		(422)		(1,143)		(1,291)
Recognized actuarial loss		42		19		126		57
Net periodic pension expense	$	160	$	119	$	474	$	367