Condensed Consolidated Statements of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net loss	$ (1,980)	$ (2,223)
Reconciliation of net loss to net cash used in operating activities:
Depreciation	156	132
Amortization of license fee	50	50
Stock-based compensation expense	185	319
Provision for write down of inventory	90	96
Amortization of debt issuance costs	81
Changes in operating assets and liabilities:
Accounts receivable	(558)	(258)
Licensing and royalty income receivable	9	(61)
Inventories	(216)	(378)
Prepaid expenses and other current assets	26	(44)
Accounts payable and accrued expenses	(43)	49
Deferred income	(9)	57
Net cash used in operating activities	(2,209)	(2,261)
Cash flows from investing activities:
Capital expenditures	(78)	(77)
Deposits for capital expenditures		(37)
Net cash used in investing activities	(78)	(114)
Cash flows from financing activities:
Proceeds from note payable, related party	500
Sale of Series C Convertible preferred stock, net of expenses		1,517
Principal payments on capital lease obligation	(15)	(8)
Proceeds from exercise of common stock options	73
Net cash provided by financing activities	558	1,509
Net decrease in cash and cash equivalents	(1,729)	(866)
Cash and cash equivalents at beginning of period	5,116	1,124
Cash and cash equivalents at end of period	3,387	258
Supplemental cash flow information:
Cash payments for interest	55	1
Cash payment for taxes	5	2
Non cash investing and financing transactions:
Equipment purchases financed through capital leases		122
Cashless exercise of warrants	2
Restricted stock forfeited	$ 1