ACCOUNTS RECEIVABLE AND CUSTOMER DEPOSITS (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
ACCOUNTS RECEIVABLE AND CUSTOMER DEPOSITS
Accounts receivable	$ 464,511		$ 464,511		$ 196,204
Less: Allowance for doubtful accounts	(115,000)		(115,000)		(111,000)
Total	349,511		349,511		$ 85,204
Bad debt expense			128,491	$ 103,262
Credit Risk
ACCOUNTS RECEIVABLE AND CUSTOMER DEPOSITS
Bad debt expense	$ 2,000	$ 71,262	$ 53,571	$ 103,182