Condensed Consolidated Statements of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010
Operating activities
Net loss from operations	$ (247)		$ (469)
Adjustments to reconcile net loss from operations to net cash provided by (used in) operating activities:
Depreciation and amortization	88		100
Non-cash stock compensation	16		16
Provision for doubtful accounts	5
Changes in operating assets and liabilities:
Accounts receivable, trade	(65)		112
Inventory	9		119
Prepaids and other current assets	(10)		(25)
Other assets	(4)		5
Accounts payable and accrued expenses	(280)		(412)
Net cash used in operating activities	(488)		(554)
Investing activities
Patent acquisition costs	(12)		(7)
Purchase of plant and equipment	(66)		(58)
Net cash used in investing activities	(78)		(65)
Financing activities
Net repayment of line of credit and capital lease obligations	(12)		(24)
Net cash used in financing activities	(12)		(24)
Net decrease in cash	(578)		(619)
Cash and cash equivalents, beginning of year	11,643	[1]	11,785
Cash and cash equivalents, end of quarter	$ 11,065		$ 11,166

[1] These numbers were derived from the audited financial statements for the year ended December 31, 2010. See accompanying notes.