STATEMENTS OF CASH FLOWS (Unaudited) (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net loss	$ (746,000)	$ (4,002,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Reserve for doubtful accounts	(59,000)	196,000
Inventory reserve	200,000	893,000
Depreciation and amortization	91,000	238,000
Loss on disposal of fixed assets	40,000
Loss on asset impairment		68,000
Stock option expense	6,000	166,000
(Increase) decrease in:
Accounts receivable	89,000	(151,000)
Inventory and supplies	(30,000)	67,000
Prepaid expenses and other current assets	123,000	39,000
Long term receivables	27,000	6,000
Increase (decrease) in:
Accounts payable	30,000	92,000
Deferred revenues	156,000	(198,000)
Accrued payroll and related expense	21,000	(248,000)
Other accrued liabilities	(4,000)	(174,000)
Accrued interest payable	42,000	40,000
Net cash used in operating activities	(50,000)	(2,968,000)
Cash flows from investing activities:
Proceeds from the sale of fixed assets	29,000
Purchases of property and equipment		(16,000)
Net cash provided by (used in) investing activities	(29,000)	(16,000)
Cash flows from financing activities:
Payment on notes payable	(28,000)	(11,000)
Net proceeds from the issuance of common stock		132,000
Net cash provided by (used in) financing activities	(28,000)	121,000
Net (decrease) in cash and cash equivalents	(49,000)	(2,863,000)
Cash and cash equivalents, beginning of period	57,000	3,096,000
Cash and cash equivalents, end of period	8,000	233,000
Supplemental disclosure of cash flow information:
Interest paid	1,000	2,000
Supplemental disclosure of non cash investing and financing:
Shares issued for services		$ 62,000