CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
CONSOLIDATED BALANCE SHEETS
Allowance for doubtful accounts	$ 51,357	$ 46,851
Preferred Stock, Par value	$ 0.001	$ 0.001
Preferred Stock, Shares Authorized	5,000,000	5,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common Stock, Par Value	$ 0.001	$ 0.001
Number of common stock authorized	100,000,000	100,000,000
Common Stock, shares issued	43,475,648	43,221,999
Common Stock, shares outstanding	43,475,648	43,221,999