CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 2,926,695	$ 346,905
Accounts receivable, net of allowance	256,929	192,015
Inventories	3,042,235	3,088,953
Prepaid expenses and deposits	155,137	165,339
Total current assets	6,380,996	3,793,212
Property and equipment, net	2,285,356	2,005,215
Other long-term and intangible assets	0	68,284
Total assets	8,666,352	5,866,711
Current liabilities:
Accounts payable	1,160,458	890,394
Accrued liabilities	596,107	446,434
Derivative liabilities - 8% convertible promissory notes	2,060,000	830,000
Total current liabilities	3,816,565	2,166,828
8% convertible promissory notes, net of discounts	6,908,615	5,671,162
Fair value of 10% convertible preferred stock warrants	122,357	81,716
Total liabilities	10,847,537	7,919,706
Commitments and contingencies
10% convertible preferred stock, no par value; authorized 880,000 shares; 702,123and 706,023 shares issued and outstanding at June 30, 2013 and December 31, 2012, respectively, net of discounts	6,339,370	5,922,612
Stockholders' deficit:
Common stock, no par value; authorized, 100,000,000 shares; 29,603,766 and 28,820,173 shares issued and outstanding at June 30, 2013 and December 31, 2012, respectively	29,920,241	27,103,454
Accumulated deficit	(38,440,796)	(35,079,061)
Total stockholders' deficit	(8,520,555)	(7,975,607)
Total liabilities and stockholders' deficit	$ 8,666,352	$ 5,866,711