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Note 5 - Share-based Compensation Plans (Tables) | 12 Months Ended
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Dec. 30, 2023
Notes Tables |
Share-Based Payment Arrangement, Activity [Table Text Block] |
|  |  |  |  |  | Weighted |  |  | Weighted |  |  |  |  |
|  |  |  |  |  | Average |  |  | Remaining |  |  | Aggregate |
|  |  |  |  |  | Exercise |  |  | Contractual |  |  | Intrinsic |
|  | Shares |  |  | Price |  |  | Life (years) |  |  | Value |
Outstanding at beginning of year |  |  | 961,400 |  |  | $ | 2.47 |  |  |  |  |  |  |  |  |
Granted |  |  | 344,500 |  |  | $ | 2.90 |  |  |  |  |  |  |  |  |
Exercised |  |  | (141,000 | ) |  | $ | 1.78 |  |  |  |  |  |  |  |  |
Forfeited |  |  | (236,400 | ) |  | $ | 2.93 |  |  |  |  |  |  |  |  |
Expired |  |  | (25,000 | ) |  | $ | 1.00 |  |  |  |  |  |  |  |  |
Outstanding at end of year |  |  | 903,500 |  |  | $ | 2.66 |  |  |  | 6.51 |  |  | $ | 2,403,762 |
Options exercisable at year-end |  |  | 494,600 |  |  | $ | 2.42 |  |  |  | 4.58 |  |  | $ | 1,199,158 |
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | 2023 |  |  | 2022 |
Risk-free interest rate |  |  | 3.43% | - | 4.24% |  |  |  | 1.55% | - | 2.84% |
Expected life in years |  |  | 5 | - | 5.5 |  |  |  | 6 | - | 7 |
Expected volatility |  |  |  | 59.7% |  |  |  |  |  | 54% |  |
Expected dividend yield |  |  |  | 0 |  |  |  |  |  | 0 |  |
Weighted average fair value of grants |  |  |  | $2.91 |  |  |  |  |  | $3.11 |  |

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- Definition Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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