Statements of Cash Flows (USD $)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
OPERATING ACTIVITIES:
Net loss	$ (4,107,000)	$ (680,000)	$ (3,122,000)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	100,000	129,000	172,000
Provision for bad debts and returns, net	35,000	67,000	25,000
Provision for inventory reserve	1,448,000	49,000	280,000
Stock based compensation	9,000	39,000	32,000
Loss on sale of securities	74,000	18,000	4,000
Accounts receivable	(25,000)	(243,000)	(549,000)
Inventories	(250,000)	(898,000)	718,000
Prepaid expenses and other assets	164,000	(20,000)	89,000
Accounts payable	746,000	68,000	576,000
Accrued payroll and related liabilities	(163,000)	(26,000)	15,000
Other accrued liabilities	429,000	42,000	11,000
Net cash used in operating activities	(1,540,000)	(1,455,000)	(1,748,000)
INVESTING ACTIVITIES:
Purchases of equipment	(136,000)	(101,000)	(71,000)
Purchases of marketable securities	(13,810,000)	(10,443,000)	(16,765,000)
Proceeds from the sale of marketable securities	17,897,000	14,735,000	18,539,000
Net cash provided by investing activities	3,951,000	4,191,000	1,703,000
FINANCING ACTIVITIES:
Cash dividends on common shares			(1,470,000)
Net cash used in financing activities			(1,470,000)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	2,411,000	2,736,000	(1,515,000)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	4,970,000	2,234,000	3,749,000
CASH AND CASH EQUIVALENTS, END OF PERIOD	7,381,000	4,970,000	2,234,000
SUPPLEMENTAL CASH FLOW DISCLOSURES:
Income taxes paid	$ 9,000	$ 12,000	$ 12,000