Annual report pursuant to Section 13 and 15(d)

Note T - Subsequent Events (Details Textual)

v3.19.1
Note T - Subsequent Events (Details Textual) - USD ($)
1 Months Ended 12 Months Ended
Mar. 31, 2019
Feb. 28, 2019
May 31, 2014
Dec. 31, 2018
Dec. 31, 2017
Proceeds from Stock Options Exercised       $ 62,500
Proceeds from Issuance of Private Placement   $ 250,000 $ 10,000,000 $ 150,836
Private Placement [Member]          
Stock Issued During Period, Shares, New Issues     2,000,000    
Subsequent Event [Member] | Warrants, Public Offering [Member]          
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   1,428,000      
Warrants and Rights Outstanding, Term   5 years      
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 0.50      
Subsequent Event [Member] | Warrants, Private Offering [Member]          
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   178,594      
Subsequent Event [Member] | Public Offering [Member]          
Proceeds from Issuance or Sale of Equity, Total   $ 2,000,000      
Stock Issued During Period, Shares, New Issues   5,715,000      
Proceeds from Stock Options Exercised $ 198,000        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period 567,400        
Subsequent Event [Member] | Private Placement [Member]          
Stock Issued During Period, Shares, New Issues   714,286