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RELATED PARTY TRANSACTIONS (Tables)
9 Months Ended
Sep. 30, 2021
Related Party Transactions [Abstract]  
Restricted Common Stock Activity
The following table summarizes the activity related to restricted common stock for the nine months ended September 30, 2021 and September 30, 2020:

Nine Months Ended September 30, 2021
20212020
SharesWeighted Average Grant Date Fair Market ValueSharesWeighted Average Grant Date Fair Market Value
Outstanding Unvested Shares at Beginning of Period4,500 $2.60 4,500 $3.33 
Granted4,500 4.18 4,500 2.60 
Vested(4,500)2.60 (4,500)$3.33 
Outstanding Unvested Shares at End of Period4,500 $4.18 4,500 $2.60