Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	6 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (501,800)	$ (2,052,100)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,300	259,900
Gain on sale of marketable securities	(38,700)	0
Stock and warrants issued for services	0	5,300
Stock-based compensation	7,800	400,700
Changes in operating assets and liabilities:
Accounts receivable, net	101,900	502,200
Inventories, net	0	(556,000)
Prepaid expenses and other current assets	(67,400)	113,000
Accounts payable and accrued expenses	(79,600)	297,300
Deferred revenue	0	(46,400)
Costs and estimated earnings in excess of billings on uncompleted contracts	0	12,700
Billings in excess of costs and estimated earnings on uncompleted contracts	0	7,300
Customer advances	0	172,400
Other assets	0	32,200
Net cash used in operations	(576,500)	(851,500)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property, plant, and equipment	(500)	(4,900)
Proceeds from sale of marketable securities	1,128,600	0
Proceeds from sale of net RFID Technology segment assets	0	2,000,000
Net cash provided by investing activities	1,128,100	1,995,100
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from borrowings	0	484,900
Repayment on borrowings	0	(2,382,800)
Repayment on capital leases	0	(8,600)
Proceeds from exercise of stock options	151,200	0
Proceeds from sale of equity instruments, net	0	944,400
Cash dividends paid	0	(26,500)
Payment for listing fees	(4,000)	(17,900)
Purchase of treasury shares	(14,100)	0
Other	(600)	0
Net cash provided by (used in) financing activities	132,500	(1,006,500)
NET INCREASE IN CASH	684,100	137,100
CASH AND CASH EQUIVALENTS, beginning of period	783,200	400,500
CASH AND CASH EQUIVALENTS, end of period	1,467,300	537,600
SUPPLEMENTAL SCHEDULE OF CASH FLOW INFORMATION
Net cash paid during the period for interest	0	254,100
Non-Cash Activities:
Unrealized gain (loss) on marketable securities	(290,800)	0
Value of shares issued in payment of interest and services	0	5,300
Value of stock issued for payment of notes	0	2,100
Series B preferred stock dividend, paid in kind	30,500	56,000
Gain on redemption of Series B preferred stock, net of legal fees	443,200	0
Series D preferred stock dividend, paid in common stock or accrued	0	33,400
Series E preferred stock dividend, paid or accrued	0	53,500
Series D preferred stock converted to common stock	0	518,900
Series E preferred stock converted to common stock	0	45,000
Marketable securities paid for services	100,000	0
Settlement of Series B Preferred Stock for a note payable	$ 800,000	$ 0