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FINANCIAL INSTRUMENTS (Details 2) - USD ($)
Dec. 31, 2021
Sep. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Statement [Line Items]          
Cash $ 24,765,000   $ 11,713,000 $ 9,625,000 $ 3,252,000
Amounts receivable 1,208,000   529,000    
Long-term investments 3,939,000   4,176,000    
Warrant liability $ 680,000   $ 278,000    
Level 1 of fair value hierarchy [member]          
Statement [Line Items]          
Cash   $ 24,765,000      
Amounts receivable   0      
Long-term investments   3,939,000      
Total financial assets   28,704,000      
Warrant liability   0      
Total financial liabilities   0      
Level 2 of fair value hierarchy [Member]          
Statement [Line Items]          
Cash   0      
Amounts receivable   1,208,000      
Long-term investments   0      
Total financial assets   1,208,000      
Warrant liability   0      
Total financial liabilities   0      
Level 3 of fair value hierarchy [Member]          
Statement [Line Items]          
Cash   0      
Amounts receivable   0      
Long-term investments   40,000      
Total financial assets   40,000      
Warrant liability   (741,000)      
Total financial liabilities   $ (741,000)