Income Taxes (Tables)

12 Months Ended

Mar. 31, 2013

Income Taxes

Schedule of geographical breakdown of its income (loss) before provision for income taxes

	Year Ended March 31,
(in thousands)	2013			2012			2011
Domestic	$	(2,877	)	$	(3,534	)	$	(3,232	)
Foreign	12			85			401
Loss before provision for taxes	$	(2,865	)	$	(3,449	)	$	(2,831	)

Schedule of components of the provision for income taxes

	Years Ended March 31,
(in thousands)	2013		2012		2011
Current
Federal	$	—	—		$	1
State	—		—		(2		)
Foreign	76		69		56
Total current provision	$	76	$	69	$	55
Deferred
Federal	—		—		—
State	—		—		—
Foreign	1		29		94
Total deferred provision	$	1	$	29	$	94
Total	$	77	$	98	$	149

Schedule of reconciliations of the provisions for income taxes at the statutory rates to the Company's provisions for income taxes

	2013		2012		2011
Expected U.S. Federal tax benefit	(34.0	)%	(34.0	)%	(34.0	)%
State taxes	(4.3	)%	(4.3	)%	(4.3	)%
Foreign taxes	2.7	%	2.0	%	5.2	%
Change in valuation allowance	38.8	%	34.1	%	41	%
Research and experimentation credit	(8.3	)%	(3.2	)%	(9.2	)%
Stock-based compensation expense	7.5	%	8.0	%	6.1	%
Other	0.2	%	0.2	%	0.5	%
Actual effective tax rate	2.6	%	2.8	%	5.3	%

Schedule of significant components of the net deferred tax assets

(in thousands)	2013			2012			2011
Deferred tax assets:
Net operating loss carryforwards	$	15,926		$	17,572		$	19,035
Accruals and allowances recognized in different periods	323			373			162
Research and experimentation credit carryforwards	5,438			5,013			4,937
Property and equipment	73			109			138
Stock-based compensation expense	1,225			855			688
Total deferred tax assets	22,985			23,922			24,960
Less valuation allowance	(22,387		)	(23,532		)	(24,519		)
Total deferred assets	598			390			441
Deferred tax liabilities:
Currency translation adjustment	(125		)	(129		)	(137		)
Intangibles	(224		)	—			—
Total deferred tax liabilities	(349		)	(129		)	(137		)
Net deferred tax assets	$	249		$	261		$	304

Schedule of reconciliation of the beginning and ending amount of unrecognized tax benefits

	Years Ended March 31,
	2013		2012			2011
Balance at April 1	$	—	$	103,000		$	119,000
Additions based on tax positions taken during a prior period	—		—			—
Reductions based on tax positions taken during a prior period	—		—			(16,000		)
Additions based on tax positions taken during the current period	—		—			—
Reductions based on settlements with taxing authorities	—		(103,000		)	—
Balance at March 31	$	—	$	—		$	103,000