Balance Sheets (Parenthetical) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Inventory net allowance	$ 284,319	$ 54,269
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	0
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	200,000,000	600,000,000
Common stock, shares issued	6,845,638	334,003
Common stock, shares outstanding	6,844,242	332,607
Treasury stock, shares	1,396	1,396
Series A Redeemable Convertible Preferred Stock
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, liquidation value	$ 0	$ 1,406,369
Preferred stock, shares authorized	0	1,292,084
Preferred stock, shares issued	0	1,292,084
Preferred stock, shares outstanding	0	1,292,084
Series B Redeemable Convertible Preferred Stock
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, liquidation value	$ 0	$ 2,104,811
Preferred stock, shares authorized	0	11,919,624
Preferred stock, shares issued	0	6,789,712
Preferred stock, shares outstanding	0	6,789,712
Series C-1 Redeemable Convertible Preferred Stock
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, liquidation value	$ 0	$ 4,581,944
Preferred stock, shares authorized	0	17,530,800
Preferred stock, shares issued	0	13,242,612
Preferred stock, shares outstanding	0	13,242,612
Series C-2 Redeemable Convertible Preferred Stock
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, liquidation value	$ 0	$ 2,244,343
Preferred stock, shares authorized	0	19,262,522
Preferred stock, shares issued	0	9,948,331
Preferred stock, shares outstanding	0	9,948,331
Series D Redeemable Convertible Preferred Stock
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, liquidation value	$ 0	$ 68,001,923
Preferred stock, shares authorized	0	237,031,908
Preferred stock, shares issued	0	139,529,173
Preferred stock, shares outstanding	0	139,529,173
Preferred stock, shares issued	723,050
Series E Redeemable Convertible Preferred Stock
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, liquidation value	$ 0	$ 20,839,001
Preferred stock, shares authorized	0	185,046,445
Preferred stock, shares issued	0	45,938,041
Preferred stock, shares outstanding	0	45,938,041