Note 16 Income Taxes (Tables)

12 Months Ended

Mar. 31, 2013

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

Income before income tax consists of the following (in thousands):
	Year Ended March 31,
	2013		2012		2011
Domestic	$	7,359	$	15,015	$	23,546
International		7,323		25,526		19,354
	$	14,682	$	40,541	$	42,900

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

Our provision for income taxes consists of the following (in thousands):
	Year Ended March 31,
Current:	2013		2012		2011
Federal	$	1,795	$	3,080	$	8,125
State		278		467		836
Foreign		2,466		4,992		2,690
		4,539		8,539		11,651
Deferred:
Federal		1,734		772		(7,253)
State		(102)		326		(1,054)
Foreign		863		598		2,909
		2,495		1,696		(5,398)
Total income tax provision	$	7,034	$	10,235	$	6,253

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

The reconciliation of our effective tax rate to the U.S. statutory federal income tax rate is as follows:
	Year Ended March 31,
	2013		2012		2011
		(%)		(%)		(%)
Statutory federal income tax rate		35		35		35
State taxes, net of federal tax benefit		1		2		(1)
Expense (benefit) of lower tax jurisdictions		0		(5)		(8)
Research and development tax credits		(4)		(1)		(1)
Valuation allowance		6		(4)		(19)
Permanent items		4		3		3
Tax reserves		3		(6)		5
Share-based compensation		2		1		1
Foreign income		1		-		-
Effective tax provision rate		48		25		15

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

The significant components of net deferred income tax assets are as follows (in thousands):
				March 31,
				2013		2012
Deferred tax assets:
	Reserves and allowances			$	6,254	$	6,369
	Other liabilities and accruals				913		2,081
		Total short term deferred tax assets			7,167		8,450
	Other long term liabilities and accruals				2,583		1,709
	Depreciable assets				1,959		3,114
	Net operating loss carryforward				17,261		18,469
	Share-based compensation				4,431		3,696
	Credits carryforward				2,396		2,300
		Total long term deferred tax assets			28,630		29,288
			Total deferred tax assets		35,797		37,738
	Less: Valuation allowance and other reserves				(3,783)		(3,659)
			Net deferred tax asset	$	32,014	$	34,079

Summary of Income Tax Contingencies [Table Text Block]

The aggregate changes in the balance of gross unrecognized tax benefits were as follows (in thousands):
Balance as of March 31, 2010		$	6,233
	Lapse of statute of limitations		(1,492)
	Increases in balances related to tax positions taken during prior periods		362
	Increases in balances related to tax positions taken during the current period		3,682
Balance as of March 31, 2011			8,785
	Lapse of statute of limitations and close of foreign audit		(3,555)
	Increases in balances related to tax positions taken during prior periods		285
	Increases in balances related to tax positions taken during the current period		803
Balance as of March 31, 2012			6,318
	Lapse of statute of limitations		(827)
	Increases in balances related to tax positions taken during prior periods		281
	Increases in balances related to tax positions taken during the current period		964
Balance as of March 31, 2013		$	6,736