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Oblong Industries Acquisition - Additional Information (Details) - USD ($)
12 Months Ended
Oct. 01, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Business Acquisition [Line Items]        
Preferred stock, convertible, par value (in dollars per share)   $ 0.0001    
Common Stock, convertible, par value (in dollars per share) $ 0.0001 $ 0.0001 $ 0.0001  
Exercise period 1 year      
Fair value, exercise price (in dollars per share) $ 4.92      
Fair value, risk free interest rate   1.50%    
Fair value, expected volatility   217.00%    
Fair value, expected term 1 year      
Goodwill   $ 7,367,000 $ 7,908,000 $ 2,795,000
Series D Preferred Stock        
Business Acquisition [Line Items]        
Conversion of convertible preferred stock, shares (in shares) 1,686,659 1,686,659    
Preferred stock percentage 6.00% 6.00%    
Preferred stock, convertible, par value (in dollars per share) $ 0.0001 $ 0.0001 $ 0.0001  
Preferred stock, stated value $ 28.50 $ 28.50 $ 28.50  
Conversion price (in dollars per share) $ 2.85      
Convertible preferred stock, shares issued upon conversion (in shares) 17,349,010      
Oblong Industries        
Business Acquisition [Line Items]        
Purchase price $ 18,862,000      
Equity issued 51,000      
Goodwill   $ 7,367,000    
Acquisition costs $ 468,000      
Shares issued (in dollars per share) $ 0.47      
Oblong Industries | Series D Preferred Stock        
Business Acquisition [Line Items]        
Equity issued $ 18,811,000      
Shares issued (in dollars per share) $ 11.15      
Common Stock        
Business Acquisition [Line Items]        
Conversion of convertible preferred stock, shares (in shares)   158,333 43,919  
Unvested restricted shares outstanding (in shares)   23,000 109,000  
Share price (in dollars per share) $ 1.00      
Restricted Stock        
Business Acquisition [Line Items]        
Vesting period   10 years    
Restricted Stock | Series D Preferred Stock        
Business Acquisition [Line Items]        
Unvested restricted shares outstanding (in shares) 49,967 49,967    
Vesting period 2 years 2 years    
Nonemployee | Stock Options        
Business Acquisition [Line Items]        
Weighted average price of shares (in dollars per share) $ 4.92      
Exercise period 1 year      
Number of stock options outstanding (in shares) 107,845