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6. Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2019
Earnings per share:  
Schedule of computation of basic and diluted earnings per share

The following table reconciles the number of shares used in the computations of basic and diluted earnings per share for the three-month periods ended March 31, 2019 and 2018:

 

    Three Months Ended  
    March 31,  
    2019     2018  
    (In thousands)  
Weighted average number of common shares outstanding during the period used to compute basic earnings per share     22,242       21,576  
Incremental common shares attributable to exercise of outstanding options and warrants     2,017       4,088  
Weighted average number of common shares used to compute diluted earnings per share     24,259       25,664