Stockholder's Equity (Tables)

12 Months Ended

Mar. 31, 2015

Stockholders' Equity

Schedule of Share Based Payment Award Stock Options and Employee Stock Purchase Plan Valuation Assumptions

	Years Ended March 31,
	2015				2014
			ESPP				ESPP
	Stock		purchase		Stock		purchase
	options		rights		options		rights
Expected term	5.57		0.5 Years		5.67 Years		0.5 Years
Expected volatility	77	%	84	%	77	%	76	%
Risk-free interest rate	1.73	%	0.07	%	1.56	%	0.08	%
Dividend yield	0	%	0	%	0	%	0	%

Schedule Of Share Based Compensation Stock Options Activity

Total stock-based compensation expense included in the consolidated statements of comprehensive loss is as follows (in thousands):

	Twelve Months Ended March 31,
	2015		2014
Cost of service revenue	$	23	$	39
Operating expense:
Selling and marketing	53		347
Research and development	114		285
General and administrative	411		410
Total stock-based compensation expense	601		1,081
Income tax benefit	—		—
Net stock-based compensation expense	$	601	$	1,081

Schedule of stock option activity

	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term in Years	Aggregate Intrinsic Value
Options outstanding as of March 31, 2014	3,409,433		$	2.41	7.0	$	221,097
Granted	3,203,000		$	0.78
Exercised	(22,542	)	$	0.70
Forfeited	(1,305,036	)	$	1.27
Expired	(654,033	)	$	2.40
Options outstanding as of March 31, 2015	4,630,822		$	1.61	7.6	$	2,575
Vested and expected to vest at March 31, 2015	4,019,928		$	1.75	7.3	$	1,770
Exercisable at March 31, 2015	2,083,884		$	2.59	5.3	$	—