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SUBSEQUENT EVENTS	3 Months Ended
SUBSEQUENT EVENTS	Mar. 31, 2021
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	16. SUBSEQUENT EVENTS In May 2021, the Company granted awards of 5,083 restricted shares of Common Stock to each of the independent members of the Board of Directors (20,332 shares in the aggregate) under the 2015 Equity Incentive Plan, which vest after one year of continuous service.