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STOCK TRANSACTIONS	3 Months Ended
STOCK TRANSACTIONS	Mar. 31, 2022
Equity [Abstract]
STOCK TRANSACTIONS	STOCK TRANSACTIONSOn September 5, 2018, we received a promissory note from an employee in consideration for the early exercise of 825,000 shares of common stock options. In June 2020, the employee resigned from the company and the promissory note was amended and restated to reflect the loan amount related to the vested shares, and the cancellation of indebtedness and our repurchase of the employee’s unvested shares. The promissory note is secured by the underlying shares of common stock and bears interest at the lesser of 2.86% per annum or the maximum rate permissible by law (which under the laws of the State of California shall be deemed to be the laws relating to permissible rates of interest on commercial loans). On November 19, 2018, we received a promissory note from an employee in consideration for the early exercise of 220,000 shares of common stock options. The promissory note is secured by the underlying shares of common stock and bears interest at 2.86% per annum. Since the notes are limited recourse notes, the note receivables are not reflected in our condensed consolidated balance sheets as of March 31, 2022 and December 31, 2021.