Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Trade accounts receivable, allowance	$ 150,000	$ 130,000
Inventories, allowance	$ 603,634	$ 250,000
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	325,000,000	325,000,000
Common stock, shares issued	20,564,163	10,883,280
Common stock, shares outstanding	20,564,163	10,883,280