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(6) Earnings Per Share (Tables)
6 Months Ended
Jun. 30, 2022
Earnings per share:  
Computation of earnings per share
                     
   Three Months Ended   Six Months Ended 
   June 30,   June 30, 
   2022   2021   2022   2021 
   (In thousands)   (In thousands) 
Weighted average number of common shares outstanding during the period used to compute basic earnings per share   21,370    22,842    21,296    22,791 
                     
Incremental common shares attributable to exercise of outstanding options and warrants   6,317    2,288    6,647    2,257 
                     
Weighted average number of common shares used to compute diluted earnings per share   27,687    25,130    27,943    25,048