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Share-Based Compensation - Additional Information (Detail) - USD ($)
12 Months Ended
Apr. 29, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options granted   0 0  
Cash from stock options exercised   $ 600,000 $ 200,000  
Total intrinsic value of options exercised   400,000 13,000  
Total fair value of option vested   $ 11,000 $ 24,000  
Restricted Stock Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award   The RSUs entitle the recipient to receive one share of Class A common stock for each RSU upon vesting. The RSUs are issued with cliff vesting in five years for employees and one year for directors, provided that the recipient is still an employee or director of Gaia on such date.    
Employee [Member] | Restricted Stock Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock units vesting term     5 years  
Directors [Member] | Restricted Stock Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock units vesting term     1 year  
2019 Employee Stock Purchase Plan [Member] | Class A Common Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of common stock reserved and authorized for issuance       300,000
Maximum number of shares any participant may purchase per calendar year       1,000
Maximum worth of shares any participant may purchase per calendar year       $ 25,000
'Plan effective date       Apr. 29, 2019
2009 Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Plan termination date Apr. 23, 2019      
2019 Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Plan termination date Apr. 25, 2029      
2019 Plan [Member] | Employee [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense related to share-based payment awards 5 years      
2019 Plan [Member] | Board Members [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense related to share-based payment awards 1 year      
2019 Plan [Member] | Class A Common Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of common stock reserved and authorized for issuance 1,800,000      
2009 Plan and 2019 Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized cost related to nonvested shared-based compensation   $ 5,200,000    
Expected cost to be recognized over a weighted-average period   3 years 7 months 17 days