Note 8 - Stock-Based Compensation	9 Months Ended
Sep. 30, 2020
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation	NOTE 8 — Stock-Based Compensation The Company recognizes the compensation cost in the financial statements for all stock-based awards to employees, including grants of stock options and restricted stocks, based on the fair value of the awards as of the date that the awards are issued. Compensation cost for stock-based awards is recognized on a straight-line basis over the vesting period. The fair values of stock options are generally determined using a binomial lattice valuation model which incorporates assumptions about expected volatility, risk-free interest rate, dividend yield, and expected life. There were 37,000 stock options at the price of $1.08 granted for the nine months ended September 30, 2020, compared to 213,400 shares at the weighted average price of $2.04 granted for the nine months ended September 30, 2019. The restricted stocks are issued to employees and consultants and are held in escrow by the Company until the shares vest on the schedule of 15% after year one, 20% after year two, 25% after year three and 40% after year four, subject to the employees and consultants being a continuing service provider on the vesting dates. If the service or employment is terminated, unvested shares revert to the Company. Shares are registered at grant, so share owners may vote at the annual stockholder meeting. Restricted stocks are granted at zero cost basis. Compensation cost of the restricted stocks is recognized on a straight-line basis over the 4-year vesting period. For the nine months ended September 30, 2020 and 2019, the Company awarded 389,680 and 124,285 shares of restricted stock, respectively, leaving a balance of 301,631 available shares as of September 30, 2020. Due to the existence of restrictions on sale or transfer until the stocks vest, the Company does not count the restricted stocks as issued and outstanding shares until they vest. Total stock-based compensation expense for the three and nine months ended September 30, 2020 was $129,551 and $392,985, respectively.

Note 8 - Stock-Based Compensation

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

NOTE 8 — Stock-Based Compensation

The Company recognizes the compensation cost in the financial statements for all stock-based awards to employees, including grants of stock options and restricted stocks, based on the fair value of the awards as of the date that the awards are issued. Compensation cost for stock-based awards is recognized on a straight-line basis over the vesting period.

The fair values of stock options are generally determined using a binomial lattice valuation model which incorporates assumptions about expected volatility, risk-free interest rate, dividend yield, and expected life. There were 37,000 stock options at the price of $1.08 granted for the nine months ended September 30, 2020, compared to 213,400 shares at the weighted average price of $2.04 granted for the nine months ended September 30, 2019.

The restricted stocks are issued to employees and consultants and are held in escrow by the Company until the shares vest on the schedule of 15% after year one, 20% after year two, 25% after year three and 40% after year four, subject to the employees and consultants being a continuing service provider on the vesting dates. If the service or employment is terminated, unvested shares revert to the Company. Shares are registered at grant, so share owners may vote at the annual stockholder meeting. Restricted stocks are granted at zero cost basis. Compensation cost of the restricted stocks is recognized on a straight-line basis over the 4-year vesting period. For the nine months ended September 30, 2020 and 2019, the Company awarded 389,680 and 124,285 shares of restricted stock, respectively, leaving a balance of 301,631 available shares as of September 30, 2020. Due to the existence of restrictions on sale or transfer until the stocks vest, the Company does not count the restricted stocks as issued and outstanding shares until they vest.

Total stock-based compensation expense for the three and nine months ended September 30, 2020 was $129,551 and $392,985, respectively.