Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018
Current assets
Cash and cash equivalents	$ 113,370	$ 116,260
Accounts receivable, net	30,320	31,225
Inventories	18,095	16,605
Marketable securities	505	544
Prepaid expenses and other current assets	2,248	2,977
Total current assets	164,538	167,611
Property and equipment, net	27,388	27,744
Patents, net	5,501	5,231
Other assets	2,883	2,766
Total assets	200,310	203,352
Current liabilities
Accounts payable	13,005	10,441
Accrued expenses	22,008	25,776
Deferred revenue current	1,248	1,243
Total current liabilities	36,261	37,460
Long-term liabilities
Financing obligation	21,045	21,064
Deferred revenue noncurrent	8,122	8,946
Other liabilities	903	1,412
Total liabilities	66,331	68,882
Commitments and contingencies (see Note 7)
Common stock, $0.001 par value; authorized 100,000,000 common shares; issued and outstanding 34,703,282 at September 30, 2018 and 33,360,032 at June 30, 2018, respectively	33
Additional paid in capital	465,382
Accumulated other comprehensive income	0
Accumulated deficit	(331,436)
Total stockholders’ equity	133,979	134,470
Total liabilities and stockholders’ equity	$ 200,310	$ 203,352