ACCOUNTS RECEIVABLE

12 Months Ended

Dec. 31, 2021

Receivables [Abstract]

ACCOUNTS RECEIVABLE

4. ACCOUNTS RECEIVABLE

Accounts receivable consists of trade receivables as follows:

	December 31,
	2021			2020
Billed receivables	$	5,177,601		$	5,226,468
Less: allowance for doubtful accounts		(209,887	)		(263,562	)
Total accounts receivable, net	$	4,967,714		$	4,962,906