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Net Income per Common Share (Tables)
6 Months Ended
Jun. 30, 2017
Earnings Per Share [Abstract]  
Computation of basic and diluted net income per common share:
The computation of basic and diluted net income per common share is as follows:

 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2017
 
2016
 
2017
 
2016
Net income
$
2,162,000

 
$
1,460,000

 
$
3,848,000

 
$
4,350,000

 
 
 
 
 
 
 
 
Weighted average common shares outstanding — basic
7,687,000

 
7,617,000

 
7,669,000

 
7,602,000

Effect of dilutive securities
65,000

 
56,000

 
61,000

 
38,000

Weighted average common and potentially issuable common shares outstanding — diluted
7,752,000

 
7,673,000

 
7,730,000

 
7,640,000

 
 
 
 
 
 
 
 
Basic net income per common share
$
0.28

 
$
0.19

 
$
0.50

 
$
0.57

Diluted net income per common share
$
0.28

 
$
0.19

 
$
0.50

 
$
0.57