Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.20.1
Consolidated Balance Sheets (Parenthetical) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Statement of Financial Position [Abstract]      
Accounts receivable, allowance for doubtful accounts $ 88,071 $ 10,104 $ 2,280
Common stock, par value $ 0.001 $ 0.001 $ 0.001
Common stock, shares authorized 100,000,000 100,000,000 100,000,000
Common stock, shares issued 51,380,969 45,998,053 37,025,140
Common stock, shares outstanding 51,380,969 45,998,053 37,025,140