CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 997	$ 2,585
Accounts receivable, net of allowance of $2 and $2 at June 30, 2012 and December 31, 2011, respectively	352	453
Inventories	200	238
Prepaid expenses and other current assets	193	233
Total current assets	1,742	3,509
Equipment, furniture and leasehold improvements, net	90	36
Other assets	4	4
Total assets	1,836	3,549
Current liabilities:
Accounts payable	417	149
Accrued compensation	50	63
Accrued other	223	221
Deferred revenue	256	277
Total current liabilities	946	710
Convertible notes	8,920	5,327
Warrant liabilities	4,000	1,600
Commitments and Contingencies (Note 12)
Stockholders' deficit:
Common stock, no par value, unlimited shares authorized, 31,184 shares issued and outstanding as of June 30, 2012 and 30,351 shares issued and outstanding as of December 31, 2011	93,893	93,893
Additional paid in capital	1,295	996
Accumulated deficit	(106,949)	(98,727)
Accumulated other comprehensive loss	(269)	(250)
Total stockholders' deficit	(12,030)	(4,088)
Total liabilities and stockholders' deficit	$ 1,836	$ 3,549