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MAJOR CUSTOMERS (Details) - Customer	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Revenue | Verizon Communications Inc.
Concentration Risk [Line Items]
Concentration risk, percentage	13.00%	16.00%
Accounts Receivable Balance | One Customer
Concentration Risk [Line Items]
Concentration risk, percentage			15.00%

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