Note 8 - Earnings (Loss) Per Share

6 Months Ended

Jun. 30, 2018

Notes to Financial Statements

Earnings Per Share [Text Block]

Note

8.

Earnings (Loss) per Share

The Company excluded from its diluted earnings per share calculation

500

and

10,375

common shares issuable upon conversion of shares of convertible preferred stock that were outstanding at

June 30, 2018

and

2017,

respectively, as their inclusion would be anti-dilutive.