Annual report pursuant to Section 13 and 15(d)

Note L - Stock Option Plans - Weighted Average Assumptions (Details)

v3.19.1
Note L - Stock Option Plans - Weighted Average Assumptions (Details)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Volatility  
Risk-free interest  
Expected Life (Year)  
Dividend yield 0.00%
Forfeiture Rate 6.00%
Minimum [Member]    
Volatility   81.23%
Risk-free interest   1.40%
Expected Life (Year)   2 years
Maximum [Member]    
Volatility   97.24%
Risk-free interest   2.20%
Expected Life (Year)   5 years