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STOCKHOLDERS' EQUITY (Tables)
3 Months Ended
Mar. 31, 2020
Equity [Abstract]  
Schedule of Common Stock [Table Text Block]
 
Three Months Ended
(In thousands)
March 31, 2020
 
March 31, 2019
Beginning balance
29,431

 
28,889

Common stock issued under employee stock plans
284

 
342

Repurchased
(24
)
 
(121
)
Ending balance
29,691

 
29,110


Dividends Declared and Paid [Table Text Block]
 
Three Months Ended
(In thousands, except per share amounts)
March 31, 2020
 
March 31, 2019
Dividends declared and paid
$
5,644

 
$
4,937

Dividends declared per common share
$
0.19

 
$
0.17