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STOCKHOLDERS' EQUITY (Details - Employee stock purchase plan) - USD ($) | 6 Months Ended
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Jun. 30, 2024 | Jun. 30, 2023
Equity [Abstract] |  |
Cash from employee withholdings used to purchase ESPP shares | $ 87,348 | $ 117,048
Stock based compensation expense | 40,589 | 66,217
Total charges related to the Employee Stock Purchase Plan | $ 127,937 | $ 183,265

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