XML 171 R155.htm IDEA: XBRL DOCUMENT v3.21.2
SUBSEQUENT EVENTS (Details) - $ / shares
12 Months Ended
Apr. 01, 2021
Mar. 26, 2021
Dec. 31, 2021
Mar. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Subsequent Event [Line Items]            
Common stock, par value       $ 0.01 $ 0.01 $ 0.01
Subsequent Event | 2017 Plan            
Subsequent Event [Line Items]            
Number of options granted 37,000 37,000        
Number of shares to be purchased for one option 1 1 1      
Common stock, par value $ 0.01 $ 0.01 $ 0.01