Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities
Net loss	$ (8,224)	$ (7,292)
Adjustments to reconcile net loss to net cash used in operations
Depreciation of property and equipment	367	293
Amortization and write-off of patents	41	28
Provision for doubtful accounts	696	90
Amortization of (premium) discount on debt, net	0	(8)
Debt conversion and valuation of conversion options, net	0	142
Stock-based compensation	3,573	2,300
Changes in assets and liabilities
Accounts receivable	(1,689)	(631)
Inventories	(1,754)	(2,023)
Prepaid expenses and other assets	717	11
Accounts payable	2,070	1,329
Accrued expenses and other liabilities	(271)	143
Net cash used in operations	(4,474)	(5,618)
Cash flows from investing activities
Expenditures for property and equipment	(2,981)	(287)
Purchases of marketable securities	(2,084)	0
Costs incurred in connection with patents	(113)	(124)
Net cash used in investing activities	(5,178)	(411)
Cash flows from financing activities
Exercise of stock options and warrants	683	2,559
Payments on debt	(1,200)	(1,200)
Net cash (used in) provided by financing activities	(517)	1,359
Net change in cash and cash equivalents	(10,169)	(4,670)
Cash and cash equivalents
Beginning of period	126,592	67,897
End of period	116,423	63,227
Noncash investing activities
Property and equipment included in accounts payable	$ 3,327	$ 30