Consolidated Statements of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net loss	$ (3,927,000)	$ (3,007,000)
Reconciliation of net loss to net cash used in operating activities:
Depreciation	357,000	319,000
Amortization of license fee	100,000	100,000
Bad debt expense		6,000
Provision for write down of inventory	138,000	180,000
Stock-based compensation expense	378,000	351,000
Amortization of debt issuance costs	862,000	161,000
Loss on abandonment of property	9,000
Changes in operating assets and liabilities:
Accounts receivable	(369,000)	(399,000)
Inventories	(716,000)	(559,000)
Prepaid expenses and other current assets	119,000	55,000
Accounts payable and accrued expenses	671,000	424,000
Deferred income	5,000	(25,000)
Net cash used in operating activities	(2,373,000)	(2,394,000)
Cash flows from investing activities:
Capital expenditures	(342,000)	(350,000)
Net cash used in investing activities	(342,000)	(350,000)
Cash flows from financing activities:
Proceeds from note payable, net of debt issuance costs	886,000
Proceeds from (repayment of) note payable, related party	(500,000)	500,000
Proceeds from sale of treasury stock, net of expenses	1,963,000
Proceeds from exercise of common stock options and warrants	39,000	74,000
Principal payments on capital lease obligation	(51,000)	(32,000)
Net cash provided by financing activities	2,337,000	542,000
Net decrease in cash and cash equivalents	(378,000)	(2,202,000)
Cash and cash equivalents at beginning of year	2,914,000	5,116,000
Cash and cash equivalents at end of year	2,536,000	2,914,000
Supplemental cash flow information:
Cash payments for interest	99,000	120,000
Cash receipt from taxes, net	(184,000)	(226,000)
Non cash transactions:
Equipment financed through capital lease	30,000
Issuance of restricted stock	1,000	2,000
Forfeiture of restricted stock	(2,000)	(1,000)
Issuance of warrants	$ 209,000