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MAJOR CUSTOMERS | 12 Months Ended
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Dec. 31, 2022
Risks and Uncertainties [Abstract] |
MAJOR CUSTOMERS | MAJOR CUSTOMERS The following customers contributed 10% or more of the Company's revenue in at least one of the years ended December 31, 2022, 2021 and 2020:
| Year ended December 31,
| 2022 |  | 2021 |  | 2020
Verizon Communications Inc. | 15% |  | 16% |  | 15%
At December 31, 2022, no customer accounted for 10% or more of the Company's accounts receivable balance. At December 31, 2021, one customer accounted for 10% or more of the Company's accounts receivable balance, representing approximately 15% of total accounts receivable. The Company performs ongoing credit evaluations of its customers and generally does not require collateral on accounts receivable. The Company maintains an allowance for doubtful accounts and such losses have historically been within management's expectations.

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- Definition The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -URI https://asc.fasb.org/topic&trid=2134479 + Details
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- References No definition available. + Details
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