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Equity - Consultant Stock Plan (Details) - USD ($)
12 Months Ended 13 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Sep. 30, 2020
Share-based compensation      
Shares issued for services, $3.50 (in dollars per share) $ 2.00 $ 1.03  
Shares issued for services ($2.33 per share) $ 9,000    
Exercised Options ($0.72 per share) 11,000    
Fair value of stock options issued for board service 334,000 $ 137,000  
Fair Value of stock award   6,000  
Stockholders' Equity      
Share-based compensation      
Shares issued for services ($2.33 per share) 9,000    
Exercised Options ($0.72 per share) 11,000    
Fair value of stock options issued for board service $ 334,000 $ 137,000  
Common Stock      
Share-based compensation      
Shares issued for services (in shares) 7,500 2,500  
Shares issued for services ($2.33 per share) (in shares) 3,750    
Exercised Options ($0.72 per share) (in shares) 15,000    
Additional Paid-In Capital      
Share-based compensation      
Shares issued for services ($2.33 per share) $ 9,000    
Exercised Options ($0.72 per share) 11,000    
Fair value of stock options issued for board service 334,000 $ 137,000  
Accumulated Deficit      
Share-based compensation      
Shares issued for services ($2.33 per share) 0    
Exercised Options ($0.72 per share) 0    
Fair value of stock options issued for board service 0    
Noncontrolling Interest      
Share-based compensation      
Shares issued for services ($2.33 per share) 0    
Exercised Options ($0.72 per share) 0    
Fair value of stock options issued for board service $ 0    
Fair Value of stock award   $ 6,000  
Consultant Plan [Member]      
Share-based compensation      
Number of common stock reserved for issuance 212,276    
Maximum increase in available number of authorized shares as a percentage of new shares issued 1.00%    
Shares issued for services (in shares)     10,000
Shares issued for services, $3.50 (in dollars per share) $ 1.03 $ 1.03  
Fair value of stock options issued for board service $ 10,000    
Compensation expense $ 17,000 $ 14,000  
Consultant Plan [Member] | Consultant, Two      
Share-based compensation      
Shares issued for services, $3.50 (in dollars per share) $ 2.33    
Fair value of stock options issued for board service $ 35,000    
Consultant Plan [Member] | General and administrative      
Share-based compensation      
Shares expensed in period 7,500 2,500  
Compensation expense $ 8,000 $ 3,000  
Consultant Plan [Member] | General and administrative | Consultant, Two      
Share-based compensation      
Shares expensed in period 3,750    
Compensation expense $ 9,000