Summary of Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2015

Estimated Useful Life of Property, Plant and Equipment

Property, plant and equipment are carried at cost less accumulated depreciation and amortization. The Company accounts for depreciation and amortization using the straight-line method to allocate the cost of property, plant and equipment over their estimated useful lives as follows:

Asset Classification		Estimated Useful Life in Years
Building		40
Process upgrades to the building		10-40
Machinery and equipment		3-10
Furniture and fixtures		3-5
Leasehold improvements		Shorter of the estimated useful life or the remaining lease term

Reconciliation of Numerators and Denominators of EPS Calculation

The following table reconciles the numerators and denominators of the EPS calculation for the years ended March 31, 2015, 2014, and 2013 (in thousands except per share amounts):

	Year ended March 31,
	2015			2014			2013

Numerator:
Net loss	$	(48,656	)	$	(56,258	)	$	(66,131	)
Denominator:
Weighted-average shares of common stock outstanding		8,559			6,411			5,354
Weighted-average shares subject to repurchase		(82	)		(149	)		(47	)
Shares used in per-share calculation ― basic		8,477			6,262			5,307
Shares used in per-share calculation ― diluted		8,477			6,262			5,307
Net loss per share ― basic	$	(5.74	)	$	(8.98	)	$	(12.46	)
Net loss per share ― diluted	$	(5.74	)	$	(8.98	)	$	(12.46	)