Condensed Balance Sheets (Parenthetical) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Statement Of Financial Position [Abstract]
Inventory net allowance	$ 302,556	$ 284,319
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	7,006,317	6,845,638
Common stock, shares outstanding	7,004,921	6,844,242