Note 5 - Share-based Payments	9 Months Ended
Sep. 25, 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 September 25, 2021 there were 5,000 stock options granted under the Plan. There were no stock options granted under the Plan during quarter ended September 26, 2020. During the quarter ended September 25, 2021, 500 options were exercised at a weighted average price of $1.49. During the quarter ended September 25,2021, 32,200 options were forfeited and none expired. During the quarter ended September 26, 2020, 288,250 options were exercised at a weighted average price of $1.53, and 261,355 options expired at a weighted average price of $1.53. Also during the quarter ended September 26, 2020, 500 shares were gifted to an employee for completing 20 years of service to the company. During the quarter ended September 25, 2021, the Company repurchased 112 shares for employees to facilitate their exercise of stock options. During the quarter ended September 26, 2020 the Company repurchased 200,018 shares for employees to facilitate their exercise of stock options. There were also 841,900 shares outstanding at a weighted average price of $2.19 with a weighted average remaining term of 6.4 years as of September 25, 2021, and there were 471,700 shares exercisable at a weighted average price of $1.89 with a weighted average remaining term of 4.7 years as of September 25, 2021. The Plan, as amended, is authorized to issue 1,500,000 shares of common stock. As of September 25, 2021, there were 1,147,000 shares available for future grants. During the three and nine months ended September 25, 2021 the Company recognized approximately $28 thousand and $148 thousand, respectively as share-based compensation expense related to share and option grants. These amounts are included as a component of selling, general and administrative expenses in the statement of operations. During the three and nine months ended September 26, 2020 the Company recognized approximately $17 thousand and $100 thousand, respectively as share-based compensation expense related to share and option grants. These amounts are included as a component of selling, general and administrative expenses in the statement of operations.

Note 5 - Share-based Payments

9 Months Ended

Sep. 25, 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 September 25, 2021 there were 5,000 stock options granted under the Plan. There were no stock options granted under the Plan during quarter ended September 26, 2020.

During the quarter ended September 25, 2021, 500 options were exercised at a weighted average price of $1.49. During the quarter ended September 25,2021, 32,200 options were forfeited and none expired. During the quarter ended September 26, 2020, 288,250 options were exercised at a weighted average price of $1.53, and 261,355 options expired at a weighted average price of $1.53. Also during the quarter ended September 26, 2020, 500 shares were gifted to an employee for completing 20 years of service to the company.

During the quarter ended September 25, 2021, the Company repurchased 112 shares for employees to facilitate their exercise of stock options. During the quarter ended September 26, 2020 the Company repurchased 200,018 shares for employees to facilitate their exercise of stock options.

There were also 841,900 shares outstanding at a weighted average price of $2.19 with a weighted average remaining term of 6.4 years as of September 25, 2021, and there were 471,700 shares exercisable at a weighted average price of $1.89 with a weighted average remaining term of 4.7 years as of September 25, 2021. The Plan, as amended, is authorized to issue 1,500,000 shares of common stock. As of September 25, 2021, there were 1,147,000 shares available for future grants.

During the three and nine months ended September 25, 2021 the Company recognized approximately $28 thousand and $148 thousand, respectively as share-based compensation expense related to share and option grants. These amounts are included as a component of selling, general and administrative expenses in the statement of operations.

During the three and nine months ended September 26, 2020 the Company recognized approximately $17 thousand and $100 thousand, respectively as share-based compensation expense related to share and option grants. These amounts are included as a component of selling, general and administrative expenses in the statement of operations.