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Net Income Per Share
 6 Months Ended
Jun. 30, 2021
Earnings Per Share [Abstract]  
Net Income Per Share Net Income Per Share
 
Basic net income per common share (“Basic EPS”), is computed by dividing net income by the weighted average number of common shares outstanding during the period. Diluted net income per common share (“Diluted EPS”) reflects the potential dilution that could occur if stock options or other contracts to issue common stock were exercised or converted into common stock. The computation of Diluted EPS does not assume exercise or conversion of securities that would have an anti-dilutive effect on net income per common share.

Following is a reconciliation of the numerator and denominator of Basic EPS to the numerator and denominator of Diluted EPS for the three and six months ended June 30, 2021 and 2020 (dollar and share amounts in thousands, except for per share information):
 Three Months Ended
June 30,		Six Months Ended
June 30,
 2021202020212020
Net income attributable to common shareholders$6,540 $5,754 $10,556 $8,716 
Basic weighted average shares outstanding19,999 19,491 19,897 19,472 
Basic earnings per share attributable to common shareholders$0.33 $0.30 $0.53 $0.45 
Diluted shares outstanding:    
Basic weighted-average shares outstanding19,999 19,491 19,897 19,472 
Stock-based awards504 292 443 253 
Diluted weighted-average shares outstanding20,503 19,783 20,340 19,725 
Diluted earnings per share attributable to common shareholders$0.32 $0.29 $0.52 $0.44 
Dilutive shares excluded from diluted-per-share amounts:    
Stock options563 844 563 844 
Anti-dilutive shares excluded from diluted-per-share amounts:    
Stock options— 264 — 239 

Potentially dilutive shares excluded from diluted-per-share amounts include performance-based options to purchase shares of common stock for which certain earnings metrics have not been achieved. Potentially anti-dilutive shares excluded from diluted-per-share amounts include both non-qualified stock options and unearned performance-based options to purchase shares of common stock with exercise prices greater than the weighted- average share price during the period and shares that would be anti-dilutive to the computation of diluted net income per share for each of the periods presented.