Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Mar. 31, 2014
Current assets:
Cash and cash equivalents	$ 62,267	$ 71,539
Short-term investments-available-for-sale	36,343	35,044
Accounts receivable, net	22,932	25,178
Inventories	20,673	18,946
Other current assets	12,272	16,799
Total current assets	154,487	167,506
Property and equipment, net	20,303	20,746
Goodwill	11,425	11,425
Purchased intangibles, net	42	105
Other assets	6,935	7,754
Total assets	193,192	207,536
Current liabilities:
Accounts payable	17,233	26,194
Accrued payroll and related expenses	6,646	5,532
Accrued Acquisition Liability, Current	11,154	11,985
Other accrued liabilities	10,262	10,877
Deferred revenue	1,069	567
Total current liabilities	46,364	55,155
Other Liabilities, Noncurrent	4,399	3,145
Commitments and contingencies (Note 7)
Stockholders’ equity:
Preferred stock, $0.01 par value: Authorized shares - 2,000, none issued and outstanding	0	0
Common stock, $0.01 par value: Authorized shares - 375,000 at June 30, 2014 and March 31, 2014; Issued and outstanding shares - 78,170 at June 30, 2014 and 77,677 at March 31, 2014	782	777
Additional paid-in capital	6,011,239	6,005,365
Accumulated other comprehensive loss	(5,764)	(6,143)
Accumulated deficit	(5,863,828)	(5,850,763)
Total stockholders’ equity	142,429	149,236
Total liabilities and stockholders’ equity	$ 193,192	$ 207,536