Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating activities
Net loss	$ (225)	$ (1,715)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Share-based compensation	645	671
Depreciation	455	614
Provision for excess and obsolete inventories	74	171
Changes in operating assets and liabilities:
Accounts receivable	337	(473)
Inventories	(1,154)	2,057
Contract manufacturers' receivable	55	48
Prepaid expenses and other current assets	44	(168)
Other assets	11	23
Accounts payable	(19)	(1,121)
Accrued payroll and related expenses	806	(250)
Warranty reserve	(22)	(24)
Other liabilities	457	(337)
Cash received related to tenant lease incentives	0	53
Net cash provided by (used in) operating activities	1,464	(451)
Investing activities
Purchases of property and equipment	(144)	(478)
Net cash used in investing activities	(144)	(478)
Financing activities
Tax withholding paid on behalf of employees for restricted shares	(144)	(46)
Proceeds from borrowings on line of credit	0	2,100
Payment of borrowings on line of credit	0	(2,100)
Net proceeds from issuances of common stock	300	95
Payment of capital lease obligations	(49)	(53)
Net cash provided by (used in) financing activities	107	(4)
Increase (decrease) in cash and cash equivalents	1,427	(933)
Cash and cash equivalents at beginning of period	5,962	4,989
Cash and cash equivalents at end of period	$ 7,389	$ 4,056