Note 5 - Share-based Payments	6 Months Ended
Jun. 26, 2021
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	(5) Share-Based Payments The Company measures the cost of employee services received in exchange for an award of equity instruments based on the grant date fair value of the award. That cost is recognized over the period during which an employee is required to provide services in exchange for the award, the requisite service period (usually the vesting period). The Company provides an estimate of forfeitures at initial grant date. Reductions in compensation expense associated with the forfeited options are estimated at the date of grant, and this estimated forfeiture rate is adjusted periodically based on actual forfeiture experience. The company uses the Black-Scholes option pricing model to determine the fair value of the stock options granted. During the quarter ended June 26, 2021 a total of 26,000 stock options were granted to employees under the Company’s 2020 Equity Incentive Plan Stock Incentive Plan (the “Plan”) and a total of 22,000 were granted to outside directors during the quarter ended June 26, 2021 issued at a weighted average price of $5.81 per share. There were no stock options granted for the quarter ended June 27, 2020. During the three and six months ended June 26, 2021 there were 16,100 and 629,900 options exercised and corresponding shares issued at a weighted average price of $1.58 and $1.97, respectively. During the three and six months ended June 27, 2020 there were no shares exercised or issued. During the three and six months ended June 26, 2021, the Company repurchased 2,235 and 122,431 shares, respectively, for employees to facilitate their exercise of stock options. During the three and six months ended June 27, 2020 there were no shares repurchased. There were also 869,600 shares outstanding at a weighted average price of $2.14 with a weighted average remaining term of 6.67 years as of June 26, 2021, and there were 472,200 shares exercisable at a weighted average price of $2.14 with a weighted average remaining term of 4.95 years as of June 27, 2020. The Plan, as amended, is authorized to issue 1,500,000 shares of common stock. As of June 26, 2021, there were 1,138,000 shares available for future grants. As of June 26, 2021, there was $445 thousand of total unrecognized compensation cost related to nonvested share-based compensation arrangements granted under the Plan; that cost is expected to be recognized over a weighted average period of 2.02 years. During the three and six months ended June 26, 2021, the Company recognized $92,113 and $119,535, respectively, as shared-based compensation expense related to previously granted shares under the Plan. During the three and six months ended June 27, 2020, the Company recognized $17,390 and $83,063, respectively, as shared-based compensation expense related to previously granted shares under the Plan.

Note 5 - Share-based Payments

6 Months Ended

Jun. 26, 2021

Share-based Payment Arrangement [Text Block]

(5) Share-Based Payments

The Company measures the cost of employee services received in exchange for an award of equity instruments based on the grant date fair value of the award. That cost is recognized over the period during which an employee is required to provide services in exchange for the award, the requisite service period (usually the vesting period). The Company provides an estimate of forfeitures at initial grant date. Reductions in compensation expense associated with the forfeited options are estimated at the date of grant, and this estimated forfeiture rate is adjusted periodically based on actual forfeiture experience. The company uses the Black-Scholes option pricing model to determine the fair value of the stock options granted.

During the quarter ended June 26, 2021 a total of 26,000 stock options were granted to employees under the Company’s 2020 Equity Incentive Plan Stock Incentive Plan (the “Plan”) and a total of 22,000 were granted to outside directors during the quarter ended June 26, 2021 issued at a weighted average price of $5.81 per share. There were no stock options granted for the quarter ended June 27, 2020.

During the three and six months ended June 26, 2021 there were 16,100 and 629,900 options exercised and corresponding shares issued at a weighted average price of $1.58 and $1.97, respectively. During the three and six months ended June 27, 2020 there were no shares exercised or issued.

During the three and six months ended June 26, 2021, the Company repurchased 2,235 and 122,431 shares, respectively, for employees to facilitate their exercise of stock options. During the three and six months ended June 27, 2020 there were no shares repurchased.

There were also 869,600 shares outstanding at a weighted average price of $2.14 with a weighted average remaining term of 6.67 years as of June 26, 2021, and there were 472,200 shares exercisable at a weighted average price of $2.14 with a weighted average remaining term of 4.95 years as of June 27, 2020. The Plan, as amended, is authorized to issue 1,500,000 shares of common stock. As of June 26, 2021, there were 1,138,000 shares available for future grants.

As of June 26, 2021, there was $445 thousand of total unrecognized compensation cost related to nonvested share-based compensation arrangements granted under the Plan; that cost is expected to be recognized over a weighted average period of 2.02 years.

During the three and six months ended June 26, 2021, the Company recognized $92,113 and $119,535, respectively, as shared-based compensation expense related to previously granted shares under the Plan.

During the three and six months ended June 27, 2020, the Company recognized $17,390 and $83,063, respectively, as shared-based compensation expense related to previously granted shares under the Plan.