STATEMENTS OF CASH FLOWS (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net loss	$ (406,000)	$ (2,215,000)
Inventory reserve	11,000	558,000
Inventory write-off	(11,000)	(15,000)
Depreciation and amortization	58,000	119,000
Loss on asset disposal	10,000
Stock option expense	2,000	139,000
Accounts receivable	123,000	(163,000)
Inventory and supplies	(29,000)	(79,000)
Prepaid expenses and other current assets	(49,000)	(74,000)
Long term receivables	25,000	20,000
Accounts payable	(96,000)	136,000
Deferred revenues	315,000	(88,000)
Accrued payroll and related expense	(23,000)	(63,000)
Other accrued liabilities	20,000	(11,000)
Accrued interest payable	21,000	20,000
Net cash used in operating activities	(29,000)	(1,716,000)
Cash flows from investing activities:
Purchases of property and equipment		(16,000)
Net cash used in investing activities		(16,000)
Cash flows from financing activities:
Payment on notes payable	(6,000)	(6,000)
Net cash provided by (used in) financing activities	(6,000)	(6,000)
Net (decrease) in cash and cash equivalents	(35,000)	(1,738,000)
Cash and cash equivalents, beginning of period	57,000	3,096,000
Cash and cash equivalents, end of period	22,000	1,358,000
Supplemental disclosure of cash flow information:
Interest paid	$ 2,000	$ 2,000