Quarterly report pursuant to Section 13 or 15(d)

WARRANTS - RTI Warrant Activity (Details)

v3.22.2
WARRANTS - RTI Warrant Activity (Details) - Common stock - $ / shares
3 Months Ended 6 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Jun. 30, 2022
Jun. 30, 2021
Number of warrants        
Beginning balance, Number of warrants (in shares) 971,000 971,000 971,000 971,000
Granted, Number of warrants (in shares)     0 0
Exercised, Number of warrants (in shares)     0 0
Ending balance, Number of warrants (in shares)     971,000 971,000
Exercisable, Number of warrants (in shares)     971,000 971,000
Weighted average exercise price        
Beginning balance, Weighted average exercise price (in usd per share) $ 5.56 $ 5.56 $ 5.56 $ 5.56
Ending balance, Weighted average exercise price (in usd per share)     5.56 5.56
Weighted average grant date fair value        
Beginning balance, Weighted average grant date fair value (in usd per share) $ 0.03 $ 0.03 0.03 0.03
Ending balance, Weighted average grant date fair value (in usd per share)     $ 0.03 $ 0.03
Additional disclosures        
Weighted average remaining contractual term (years) 3 years 4 years 2 years 6 months 3 years 6 months