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(6) Earnings Per Share (Details Narrative) - shares
shares in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Earnings per share:        
Antidilutive shares 6,000 13,300 6,900 13,100