CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Net income	$ 1,299	$ 4,370
Adjustments to reconcile net income to net cash provided by operating activites:
Depreciation	1,576	1,287
Amortization of intangible assets	1,133	671
Amortization of capitalized software	170	37
Net accretion of discount and amortization of premium on marketable securities	428	0
Gain on disposal of discontinued operations	0	(589)
Stock-based compensation	3,855	2,013
Deferred income tax provision	2,002	1,589
Other	115	390
Changes in assets and liabilities:
Accounts receivable, net	(1,883)	(1,179)
Inventory	29	91
Other current and non-current assets	(608)	(431)
Deferred cost of goods sold	(340)	(6)
Accounts payable	980	22
Accrued compensation	918	17
Accrued warranty	(122)	100
Accrued taxes and fees	249	(166)
Deferred revenue	(564)	961
Other current and non-current liabilities	(607)	(166)
Net cash provided by operating activities	8,630	9,011
Cash flows from investing activities:
Purchases of property and equipment	(2,553)	(1,445)
Cost of capitalized software	(181)	(473)
Proceeds from maturity of investments	21,600	0
Sales of investments - available for sale	25,537	0
Purchases of investments - available for sale	(57,854)	0
Net cash used in investing activities	(13,451)	(1,918)
Cash flows from financing activities:
Capital lease payments	(81)	(10)
Repurchase of common stock	(80)	(257)
Proceeds from issuance of common stock under employee stock plans	1,699	2,214
Net cash provided by financing activities	1,538	1,947
Effect of exchange rate changes on cash	172	0
Net (decrease) increase in cash and cash equivalents	(3,111)	9,040
Cash and cash equivalents at the beginning of the period	59,159	50,305
Cash and cash equivalents at the end of the period	56,048	59,345
Supplemental cash flow information
Income taxes paid	93	276
Interest paid	$ 16	$ 2