CONSOLIDATED BALANCE SHEETS (USD $)	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 346,905	$ 1,982,772
Accounts receivable, net of allowance for doubtful accounts	192,015	701,155
Inventories	3,088,953	1,528,491
Prepaid expenses and deposits	165,339	203,445
Total current assets	3,793,212	4,415,863
Property and equipment, net	2,005,215	1,047,136
Intangible and other long-term assets	68,284	78,997
Total assets	5,866,711	5,541,996
Current liabilities:
Accounts payable	890,394	1,175,462
Accrued liabilities	446,434	359,715
Derivative liabilities	830,000	2,059,077
Convertible debt	0	933,294
Total current liabilities	2,166,828	4,527,548
8% convertible promissory notes	5,671,162	0
Fair value of 10% convertible preferred stock warrants	81,716	487,555
Total liabilities	7,919,706	5,015,103
10% convertible preferred stock, no par value, net; authorized 880,000 shares; 706,023 and 752,273 shares issued and outstanding at December 31, 2012 and 2011, respectively	5,922,612	5,520,256
Redeemable common stock, no par value; no shares and 250,000 shares issued and outstanding at December 31, 2012 and 2011, respectively	0	242,500
Total temporary equity	5,922,612	5,762,756
Commitments and contingencies
Stockholders' deficit:
Common stock, no par value; authorized, 100,000,000 shares; 28,820,173 and 25,007,261 shares issued and outstanding at December 31, 2012 and 2011, respectively	27,103,454	24,410,071
Accumulated deficit	(35,079,061)	(29,645,934)
Total stockholders' deficit	(7,975,607)	(5,235,863)
Total liabilities and stockholders' deficit	$ 5,866,711	$ 5,541,996