Annual report pursuant to Section 13 and 15(d)

Share-Based Compensation - Additional Information (Detail)

v3.19.3.a.u2
Share-Based Compensation - Additional Information (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Options granted 0  
Cash from stock options exercised $ 235,000 $ 268,000
Total intrinsic value of options exercised 36,000 385,000
Total fair value of option vested $ 231,000 $ 292,000
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  
2009 Long-Term Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Plan termination date Apr. 23, 2019  
2009 Long-Term Incentive Plan [Member] | Restricted Stock Units (RSUs) [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 vest with cliff vesting in 5 years, provided that the recipient is still an employee or director of Gaia on such date.  
Restricted stock units vesting term 5 years  
2019 Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Plan termination date Apr. 25, 2029  
Rate at which options vest per month 2.00%  
Period over which options vest and become exercisable 50 months  
2019 Incentive 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 Incentive Plan [Member] | Board Members [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Compensation expense related to share-based payment awards 5 years  
2019 Incentive 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 Incentive Plan and 2019 Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized cost related to nonvested shared-based compensation $ 4,600,000  
Expected cost to be recognized over a weighted-average period 3 years 5 months 12 days