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EQUITY INCENTIVE PLAN (Summary of Stock Option Activity) (Details) - Stock Options [Member] - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Number of Options    
Outstanding at beginning of period (in shares) 822,992  
Granted (in shares) 1,907,347 433,550
Exercised (in shares) (1,379)  
Forfeited (in shares) (93,673) (100,888)
Outstanding at end of period (in shares) 2,635,287 822,992
Exercisable at end of period (in shares) 755,610  
Weighted-Average Exercise Price    
Outstanding at beginning of period (in dollars per share) $ 4.46  
Granted (in dollars per share) 2.89 $ 2.01
Exercised (in dollars per share) 2.06  
Forfeited (in dollars per share) 2.82 12.64
Outstanding at end of period (in dollars per share) 3.38 $ 4.46
Exercisable at end of period (in dollars per share) $ 4.62