Condensed Statements of Cash Flows (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net loss	$ (718,000)	$ (283,000)
Adjustments to reconcile net loss to net cash (used in) / provided by operating activities:
Depreciation	59,000	61,000
Amortization of debt issuance costs	110,000	23,000
Provision for bad debts	(1,000)	(16,000)
Provision for slow moving and obsolete inventory	97,000	48,000
Share-based payment expense	61,000	23,000
Changes in:
Accounts receivable	(243,000)	(261,000)
Inventory	(7,000)	(199,000)
Prepaid expenses and other current assets	(52,000)	(7,000)
Accounts payable	(368,000)	751,000
Accrued expenses and other current liabilities	41,000	(71,000)
Wages payable	8,000	(32,000)
Other liabilities	1,000	1,000
Net cash (used in) / provided by operating activities	(1,012,000)	38,000
Cash flows from investing activities:
Purchase of property, plant and equipment	(57,000)	(8,000)
Patent application costs	0	(23,000)
Net cash used in investing activities	(57,000)	(31,000)
Cash flows from financing activities:
Payments on debt financing	(85,000)	(65,000)
Debt issuance costs	(145,000)	0
Proceeds from issuance of common stock	3,000	0
Proceeds from lines of credit	5,892,000	4,750,000
Payments on lines of credit	(4,630,000)	(4,770,000)
Net cash provided by / (used in) financing activities	1,035,000	(85,000)
Net decrease in cash and cash equivalents	(34,000)	(78,000)
Cash and cash equivalents - beginning of period	89,000	93,000
Cash and cash equivalents - end of period	55,000	15,000
Supplemental disclosures of cash flow information
Cash paid during period for interest	$ 120,000	$ 93,000