Note 12 Accumulated Other Comprehensive Income (Loss) (Tables)

6 Months Ended

Sep. 30, 2012

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

		September 30,		March 31,
		2012		2012
			(unaudited)
Accumulated net unrealized gain (loss) on available-for-sale investments securities,
	net of taxes of $187 at September 30, 2012 and $(37) at March 31, 2012	$	348	$	(68)
Unrecognized actuarial loss, net of tax of $(1,523)			(4,314)		(4,314)
Accumulated foreign currency translation adjustments			3,805		6,472
Total accumulated other comprehensive income (loss)		$	(161)	$	2,090