For the Years Ended
December 31,

2018

2017

Basic and diluted earnings per share calculation:

Net income to common stockholders

$

514,965

$

583,051

Weighted average number of common shares outstanding - basic

4,473,591

4,511,965

Basic net income per share

$

0.12

$

0.13

Weighted average number of common shares outstanding - diluted

4,490,795

4,511,965

Diluted net income per share

$

0.11

$

0.13