CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Net of allowance	$ 398,000	$ 212,000
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	250,000,000	250,000,000
Common stock, issued	63,875,267	48,712,288
Common stock, outstanding	63,875,267	48,712,288
Series A convertible preferred stock
Preferred stock, par value	$ 0.00010	$ 0.00010
Preferred stock, authorized	10,000,000	10,000,000
Preferred stock, issued	650,000	650,000
Preferred liquidation preference	$ 65,000	$ 65,000