Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
OPERATING ACTIVITIES:
Net loss	$ (1,308,000)	$ (5,624,000)	$ (10,363,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	220,000	183,000	$ 176,000
Loss (gain) of disposal of assets	57,000	(5,000)
Provision for bad debts and returns, net	(77,000)	24,000	$ 31,000
Provision for inventory reserve	(343,000)	2,203,000	640,000
Share-based compensation	96,000	5,000	60,000
(Gain)/loss on sale of securities	11,000	(2,000)	54,000
Changes in operating assets and liabilities:
Accounts receivable	(831,000)	2,347,000	(820,000)
Inventories	572,000	(3,752,000)	2,207,000
Prepaid expenses and other assets	127,000	125,000	(170,000)
Accounts payable	(39,000)	(1,137,000)	50,000
Accrued payroll and related liabilities	74,000	(102,000)	92,000
Deferred service revenue	(142,000)	244,000	797,000
Other accrued liabilities	(781,000)	(804,000)	761,000
Net cash used in operating activities	(2,364,000)	(6,295,000)	(6,485,000)
INVESTING ACTIVITIES:
Purchases of equipment	$ (217,000)	$ (299,000)	(453,000)
Purchases of marketable securities			$ (9,488,000)
Proceeds from the sale of equipment	$ 62,000
Proceeds from the sale of marketable securities	1,753,000	$ 10,090,000	$ 11,011,000
Net cash provided by investing activities	1,598,000	9,791,000	1,070,000
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(766,000)	3,496,000	(5,415,000)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	5,462,000	1,966,000	7,381,000
CASH AND CASH EQUIVALENTS, END OF PERIOD	4,696,000	5,462,000	1,966,000
SUPPLEMENTAL CASH FLOW DISCLOSURES:
Income taxes paid	$ 3,000	$ 2,000	$ 9,000