CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Mar. 31, 2016
Current assets:
Cash and cash equivalents	$ 33,457	$ 33,576
Short-term investments	139,194	129,274
Accounts receivable, net	13,069	11,070
Inventory	572	520
Deferred cost of goods sold	640	634
Deferred tax asset	0	5,382
Other current assets	5,551	5,444
Total current assets	192,483	185,900
Property and equipment, net	15,224	12,375
Intangible assets, net	16,726	21,464
Goodwill	44,327	47,420
Non-current deferred tax asset	48,443	43,189
Other assets	6,645	3,104
Total assets	323,848	313,452
Current liabilities:
Accounts payable	12,537	10,954
Accrued compensation	12,022	10,063
Accrued warranty	290	326
Accrued taxes	5,083	5,200
Accrued outside commissions	2,843	2,186
Deferred revenue	2,089	1,925
Other accrued liabilities	3,627	4,080
Total current liabilities	38,491	34,734
Non-current liabilities	3,001	3,258
Non-current deferred revenue	81	154
Total liabilities	41,573	38,146
Commitments and contingencies (Note 6)
Stockholders' equity:
Common stock	90	89
Additional paid-in capital	404,192	389,260
Accumulated other comprehensive loss	(10,322)	(4,184)
Accumulated deficit	(111,685)	(109,859)
Total stockholders' equity	282,275	275,306
Total liabilities and stockholders' equity	$ 323,848	$ 313,452