Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities
Net loss	$ (51,140)	$ (24,153)
Adjustments to reconcile net loss to net cash used in operations
Depreciation of property and equipment	2,728	1,292
Amortization and write-off of patents	215	146
Provision for doubtful accounts	600	1,021
Loss on disposal of property and equipment	8	99
Stock-based compensation	10,392	11,039
Changes in assets and liabilities
Accounts receivable	7,532	(10,858)
Inventories	(4,260)	(329)
Prepaid expenses and other assets	2,354	166
Accounts payable	(1,400)	826
Accrued expenses and other liabilities	12,771	5,666
Net cash used in operating activities	(20,200)	(15,085)
Cash flows from investing activities
Expenditures for property and equipment	(3,245)	(16,593)
Issuance of convertible note receivable	(350)	0
Purchases of marketable securities	(37)	(2,094)
Sales of marketable securities	0	365
Costs incurred in connection with patents	(512)	(634)
Net cash used in investing activities	(4,144)	(18,956)
Cash flows from financing activities
Proceeds from employee stock purchase plan	1,670	1,360
Exercise of stock options	1,006	1,974
Payments on debt	0	(2,400)
Net cash provided by financing activities	2,676	934
Net change in cash and cash equivalents	(21,668)	(33,107)
Cash and cash equivalents
Beginning of period	83,842	126,592
End of period	62,174	93,485
Noncash investing activities
Property and equipment included in accounts payable	$ 0	$ 1,860