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EARNINGS PER SHARE (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Numerator:      
Net income $ 3,548 $ 4,190  
Denominators:      
Unvested restricted stock (in shares) (1,000) (2,000)  
Effect of weighted average shares outstanding (in shares) (115,000) (146,000)  
Weighted average common shares outstanding, basic (in shares) 51,770,000 51,490,000  
Impact of potentially dilutive securities:      
Dilutive effect of stock options and other stock awards (in shares) 99,000 167,000  
Weighted average common shares outstanding, diluted 51,869,000 51,657,000  
Anti-dilutive potentially issuable shares (in shares) 126,000 78,000  
Class A Common Stock      
Denominators:      
Common stock, shares outstanding (in shares) 50,898,000 50,650,000 50,704,000
Class B Common Stock      
Denominators:      
Common stock, shares outstanding (in shares) 988,000 988,000 988,000