CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015
Current assets:
Cash and cash equivalents	$ 40,431	$ 22,401
Short-term marketable securities	114,489	109,557
Accounts receivable, net	34,372	31,828
Inventories	21,230	16,774
Prepaid expenses and other current assets	4,003	4,479
Deferred tax assets, net	29,587	35,100
Total current assets	244,112	220,139
Long-term marketable securities	1,501	13,996
Property and equipment, net	10,218	9,127
Goodwill	32,243	31,534
In-Process Research and Development	15,041	14,711
Long-term deferred tax assets, net	45,206	45,206
Other assets	3,685	3,654
Total assets	352,006	338,367
Current liabilities:
Accounts payable	8,617	10,389
Accrued expenses	19,798	21,894
Deferred revenue	7,868	7,036
Total current liabilities	36,283	39,319
Other long-term liabilities	198	183
Contingent consideration	6,661	6,510
Long-term deferred tax liabilities	813	795
Total liabilities	$ 43,955	$ 46,807
Commitments and contingencies (Note 10)
Stockholders' equity:
Class B Preferred Stock, $.01 par value Authorized - 1,000,000 shares; Issued and outstanding - none
Common stock, $.01 par value Authorized - 100,000,000 shares; Issued - 43,354,209 shares at June 30, 2015 and 42,618,717 shares at March 31, 2015; Outstanding - 42,018,530 shares at June 30, 2015 and 41,335,773 shares at March 31, 2015	$ 420	$ 413
Additional paid in capital	474,528	465,046
Accumulated deficit	(128,363)	(137,222)
Treasury stock at cost - 1,335,679 shares at June 30, 2015 and 1,282,944 shares at March 31, 2015	(22,812)	(19,347)
Accumulated other comprehensive loss	(15,722)	(17,330)
Total stockholders' equity	308,051	291,560
Total liabilities and stockholders' equity	$ 352,006	$ 338,367