Note 19 - Supplemental Disclosures of Cash Flows

12 Months Ended

Dec. 31, 2011

Cash Flow, Supplemental Disclosures [Text Block]

Note 19.     Supplemental Disclosures of Cash Flows

			Nine-Month
	Fiscal Year		Transition			Fiscal Year
	Ended		Period Ended			Ended
	December 31,		December 31,			March 31,
	2011		2010			2010
	(in thousands)
Interest paid	$	3	$	4		$	4
Income taxes paid	$	2	$	759		$	2,493
Income tax refund received	$	544	$	1,649		$	7,617
Non-cash investing and financing activities:
Unrealized gains (losses) on available-for-sale securities	$	260	$	(1,566	)	$	110