Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION - Additional Information (Details)

v3.22.1
STOCK-BASED COMPENSATION - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Jul. 31, 2008
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Compensation expense $ 524 $ 571  
Restricted Stock Unit Awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years    
Stock Option Plan for Key Employees      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares authorized (in shares)     1,000,000
Stock Option Plan for Key Employees | Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation, term of award 10 years    
Granted (in shares) 0 0  
Options, weighted average grant-date fair value (in dollars per share) $ 0 $ 0  
Stock Option Plan for Key Employees | Stock Options | Common Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options outstanding, in-the-money (in shares) 100,000    
Stock Option Plan for Key Employees | Stock Options | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 4 years    
Stock Option Plan for Key Employees | Stock Options | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 5 years    
Stock Option Plan for Key Employees | Stock Options and Warrants      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Awards granted during period (in shares) 0 0  
Trecora Resources Stock and Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares authorized (in shares) 2,500,000    
Trecora Resources Stock and Incentive Plan | Restricted Stock Unit Awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years    
Trecora Resources Stock and Incentive Plan | Restricted Stock Unit Awards | Director      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 1 year