Note 7 - Stock-Based Compensation	9 Months Ended
Sep. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Note 7 - Stock-Based Compensation	NOTE 7 — Stock-Based Compensation The Company recognizes the compensation cost in the financial statements for all stock-based awards to employees, including grants of employee stock options, based on the fair value of the awards as of the date that the awards are issued. The fair values of stock options are generally determined using a binomial lattice valuation model that incorporates assumptions about expected volatility, risk-free interest rate, dividend yield, and expected life. Compensation cost for stock-based awards is recognized on a straight-line basis over the vesting period. Total stock-based compensation expense for the three and nine months ended September 30, 2018, was $130,698 and $361,674, respectively. Total stock-based compensation expense for the three and nine months ended September 30, 2017 was $112,151 and $315,237, respectively. No stock options were granted in Q3 2018. During the nine months ended September 30, 2018, 259,700 stock options were granted at an estimated weighted average per share fair value of $1.65.

Note 7 - Stock-Based Compensation

9 Months Ended

Sep. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

NOTE 7 — Stock-Based Compensation

The Company recognizes the compensation cost in the financial statements for all stock-based awards to employees, including grants of employee stock options, based on the fair value of the awards as of the date that the awards are issued. The fair values of stock options are generally determined using a binomial lattice valuation model that incorporates assumptions about expected volatility, risk-free interest rate, dividend yield, and expected life. Compensation cost for stock-based awards is recognized on a straight-line basis over the vesting period. Total stock-based compensation expense for the three and nine months ended September 30, 2018, was $130,698 and $361,674, respectively. Total stock-based compensation expense for the three and nine months ended September 30, 2017 was $112,151 and $315,237, respectively. No stock options were granted in Q3 2018. During the nine months ended September 30, 2018, 259,700 stock options were granted at an estimated weighted average per share fair value of $1.65.