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6. CASH AND CASH EQUIVALENTS (Details Narrative) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Cash and cash equivalents1 [line items] |  |  |
Percentage of fixed interest rate | 4.39% | 6.39% | 6.89%
Top of Range [Member] |  |  |
Cash and cash equivalents1 [line items] |  |  |
Percentage of accrued interest on certificate of deposits | 106.00% | 106.00% | 106.00%
Bottom Of Range [Member] |  |  |
Cash and cash equivalents1 [line items] |  |  |
Percentage of accrued interest on certificate of deposits | 80.00% | 40.00% | 50.00%

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- Definition Percentage of fixed interest rate on cash deposit. + References No definition available. + Details
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- Definition Percentage of floating rate on cash deposit. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Details
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- Details
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Period Type: |