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CASH AND CASH EQUIVALENTS, AND SHORT AND LONG-TERM INVESTMENTS (Tables) | 12 Months Ended
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Dec. 31, 2019
CASH AND CASH EQUIVALENTS, AND SHORT AND LONG-TERM INVESTMENTS |
Schedule of cash and cash equivalents and investments |
|  | 2019 |  | 2018
Cash |  | 12,302 |  | 6,800
Banks and immediately available investments |  | 2,629,350 |  | 2,883,344
Cash and cash equivalents |  | 2,641,652 |  | 2,890,144
|  | 2019 |  | 2018
Short-term investments |  | 3,652,949 |  | 459,470

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