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Equity - Common Stock and Preferred Stock (Details) - USD ($)
 1 Months Ended 12 Months Ended
Dec. 31, 2019
Jul. 31, 2018
Feb. 28, 2018
Dec. 31, 2019
Dec. 31, 2018
Stockholders' equity          
Common stock, authorized shares 62,500,000     62,500,000  
Preferred stock, authorized shares 2,000,000     2,000,000  
Shares issued for services ($1.44 per share)       $ 11,000  
Net proceeds from issuance of stock (in dollars)       0 $ 23,511,000
Issuance costs of offering       3,000  
Noncontrolling interest granted as compensation, ownership percentage 1.00%        
Noncontrolling interest granted as compensation $ 6,000     6,000 0
Additional Purchase Right          
Stockholders' equity          
Common stock, authorized shares   478,854      
Share price of shares issued (in dollars per share)   $ 4      
Participation Right          
Stockholders' equity          
Maximum beneficial ownership (as a percent)   20.00%      
Maximum voting power (as a percent)   20.00%      
Common Stock          
Stockholders' equity          
Shares issued for services ($1.44 per share)       $ 0  
Shares issued for services ($1.44 per share) (in shares)       7,500  
Issuance costs of offering       $ 0  
Noncontrolling interest granted as compensation       $ 0 $ 0
Common Stock | Offering          
Stockholders' equity          
Shares issued for services ($1.44 per share) (in shares)     5,750,000    
Share price of shares issued (in dollars per share)     $ 2.25    
Net proceeds from issuance of stock (in dollars)     $ 11,900,000    
Common Stock | Stock Purchase Agreement, ClirSPV, LLC          
Stockholders' equity          
Shares issued for services ($1.44 per share)   $ 11,700,000      
Shares issued for services ($1.44 per share) (in shares)   5,213,543      
Share price of shares issued (in dollars per share)   $ 2.25      
Net proceeds from issuance of stock (in dollars)   $ 11,600,000