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ACCRUED LIABILITIES (Tables) | 12 Months Ended
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Dec. 31, 2020
Accrued Liabilities, Current [Abstract] |
Summary of accrued liabilities | Accrued liabilities consist of the following at December 31:
| 2020 |  | 2019
Accrued wages, bonuses and commissions | $ | 63,814 |  |  | $ | 49,126 |
Other accrued liabilities | 19,270 |  |  | 26,108 |
| $ | 83,084 |  |  | $ | 75,234 |

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