Unaudited Condensed Consolidated Balance Sheets - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Series 1 [Member]
Stockholders’ deficit:
Preferred stock	$ 707,000	$ 707,000
Series 2 [Member]
Stockholders’ deficit:
Preferred stock	724,000	724,000
Series 3 [Member]
Stockholders’ deficit:
Preferred stock	412,000	412,000
Cash and cash equivalents	566,000	102,000
Accounts receivable	559,000	580,000
Inventories	53,000	45,000
Prepaid expenses	56,000	69,000
Total current assets	1,234,000	796,000
Property and equipment, net	367,000	486,000
Other assets	41,000	43,000
TOTAL ASSETS	1,642,000	1,325,000
Accounts payable and accrued expenses	912,000	840,000
Dividends payable	231,000	160,000
Obligations under capital lease, current portion	160,000	197,000
Deferred revenue	965,000	386,000
Total current liabilities	2,268,000	1,583,000
Loan payable to officer	2,055,000	1,530,000
Obligations under capital lease, noncurrent portion	77,000	139,000
Commitments and contingencies
Common stock, $0.01 par value: Authorized shares — 80,000; Issued shares — 12,758 as of June 30, 2016 and 12,622 as of December 31, 2015 Outstanding shares — 12,748 as of June 30, 2016 and 12,612 as of December 31, 2015	127,000	126,000
Common stock held in treasury, at cost – 10 shares	(362,000)	(362,000)
Additional paid-in capital	56,619,000	56,520,000
Accumulated deficit	(60,878,000)	(59,947,000)
Accumulated other comprehensive loss	(107,000)	(107,000)
Total stockholders’ deficit	(2,758,000)	(1,927,000)
TOTAL LIABILITIES AND STOCKHOLDERS’ DEFICIT	$ 1,642,000	$ 1,325,000