Statements of Cash Flows (USD $)	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities:
Net loss	$ (283,000)	$ (301,000)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	61,000	137,000
Loss on disposal of property, plant and equipment	0	1,000
Amortization of debt issuance costs	23,000	22,000
Provision for bad debts	(16,000)	(14,000)
Provision for slow moving and obsolete inventory	48,000	(6,000)
Share-based payment expense	23,000	25,000
Changes in:
Accounts receivable	(261,000)	(322,000)
Inventory	(199,000)	389,000
Prepaid expenses and other current assets	(7,000)	(35,000)
Accounts payable	751,000	168,000
Accrued expenses and other current liabilities	(71,000)	(63,000)
Wages payable	(32,000)	29,000
Other liabilities	1,000	1,000
Net cash provided by operating activities	38,000	31,000
Cash flows from investing activities:
Purchase of property, plant and equipment	(8,000)	(61,000)
Patent application costs	(23,000)	0
Net cash used in investing activities	(31,000)	(61,000)
Cash flows from financing activities:
Payments on debt financing	(65,000)	(72,000)
Net proceeds from line of credit	(20,000)	87,000
Net cash (used in) / provided by financing activities	(85,000)	15,000
Net decrease in cash and cash equivalents	(78,000)	(15,000)
Cash and cash equivalents - beginning of period	93,000	37,000
Cash and cash equivalents - end of period	15,000	22,000
Supplemental disclosures of cash flow information
Cash paid during period for interest	$ 93,000	$ 101,000