Consolidated Balance Sheets (USD $)	Dec. 31, 2012	Dec. 31, 2011
Current assets
Cash and cash equivalents	$ 12,372,000	$ 46,519,000
Restricted cash	6,245,000
Accounts receivable, net	1,498,000	333,000
Product inventories, net	7,416,000	7,220,000
Prepaid expenses and other assets	937,000	1,562,000
Total current assets	34,754,000	56,312,000
Deferred contract costs	4,532,000	678,000
Restricted cash	11,803,000
Property, plant and equipment	4,076,000	6,870,000
Total Assets	66,389,000	63,532,000
Current Liabilities
Trade accounts payable	2,599,000	5,870,000
Accrued salaries and benefits	632,000	1,132,000
Accrued warranty	418,000	354,000
Accrued liabilities	384,000	421,000
Deferred revenues	7,218,000	1,616,000
Warrant liabilities	90,000	654,000
Note payable, current	6,680,000
Capital lease obligation	5,000	12,000
Total current liabilities	18,026,000	10,059,000
Deferred income	11,803,000
Capital lease obligation, less current portion	4,000
Total Liabilities	29,833,000	10,059,000
Stockholders' equity
Common stock, no par value, unlimited shares authorized;11,590,067 shares issued and outstanding at December 31, 2012 and December 31, 2011	246,667,000	245,617,000
Additional paid in capital	12,410,000	12,279,000
Accumulated deficit	(222,409,000)	(204,423,000)
Accumulated other comprehensive loss	(112,000)
Total stockholders' equity	36,556,000	53,473,000
Total Liabilities and Stockholders' Equity	66,389,000	63,532,000
Excluding Related Party [Member]
Current assets
Prepaid expenses and other assets	937,000	1,562,000
Related Party [Member]
Current assets
Prepaid expenses and other assets	1,754,000
Held and Note Used [Member]
Current assets
Property, plant and equipment	1,857,000
Patents [Member]
Current assets
Intangible assets, net	274,000	350,000
Land Use Right [Member]
Current assets
Intangible assets, net	$ 13,625,000