Annual report pursuant to Section 13 and 15(d)

Note 1 - Nature of Operations and Summary of Significant Accounting Policies - Earnings (Loss) Per Common Share (Details)

v3.10.0.1
Note 1 - Nature of Operations and Summary of Significant Accounting Policies - Earnings (Loss) Per Common Share (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Net loss and comprehensive loss $ 253,083 $ (3,432,412)
Basic weighted average shares (in shares) 13,669,107 13,245,119
Effect of dilutive securities:    
Unvested restricted stock and stock options (in shares) 362,609
Weighted average common shares outstanding - diluted (in shares) 14,031,717 13,245,119
Basic earnings (loss) per share (in dollars per share) $ 0.02 $ (0.26)
Diluted earnings (loss) per share (in dollars per share) $ 0.02 $ (0.26)
Restricted Stock [Member]    
Effect of dilutive securities:    
Anti-dilutive securities (in shares) 24,180 63,700
Employee Stock Option [Member]    
Effect of dilutive securities:    
Anti-dilutive securities (in shares) 651,036 1,003,916
Warrant [Member]    
Effect of dilutive securities:    
Anti-dilutive securities (in shares) 90,000