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Note Q - Stock Options (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Weighted |  |  |  |  |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Weighted |  |  | average |  |  |  |  |
|  | Number of Options |  |  | average |  |  | remaining |  |  | Aggregate |
|  | 2015 |  |  | Non |  |  | Total |  |  | exercise |  |  | life |  |  | intrinsic |
|  | Plan |  |  | Plan |  |  |  |  |  |  | price |  |  | (in years) |  |  | value |
Outstanding, as of December 31, 2021 |  |  | 5,072 |  |  |  | 6,771 |  |  |  | 11,843 |  |  | $ | 299.61 |  |  |  | 3.03 |  |  | $ | 0 |
Granted |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Exercised |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Forfeited |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Expired |  |  | — |  |  |  | (530 | ) |  |  | (530 | ) |  |  | 311.11 |  |  |  |  |  |  |  |  |
Outstanding, as of December 31, 2022 |  |  | 5,072 |  |  |  | 6,241 |  |  |  | 11,313 |  |  | $ | 299.07 |  |  |  | 2.07 |  |  | $ | 0 |
Granted |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Exercised |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Forfeited |  |  | (151 | ) |  |  | — |  |  |  | (151 | ) |  |  | 94.44 |  |  |  |  |  |  |  |  |
Expired |  |  | (1,548 | ) |  |  | (348 | ) |  |  | (1,896 | ) |  |  | 256.30 |  |  |  |  |  |  |  |  |
Outstanding, as of December 31, 2023 |  |  | 3.373 |  |  |  | 5,893 |  |  |  | 9,266 |  |  | $ | 311.16 |  |  |  | 0.96 |  |  | $ | 0 |
Vested or expected to vest at December 31, 2023 |  |  |  |  |  |  |  |  |  |  | 9,266 |  |  | $ | 311.16 |  |  |  | 0.96 |  |  | $ | 0 |
Exercisable at December 31, 2023 |  |  |  |  |  |  |  |  |  |  | 9,266 |  |  | $ | 311.16 |  |  |  | 0.96 |  |  | $ | 0 |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block] |
|  | Options Outstanding |  |  | Options Exercisable |
|  |  |  |  |  | Weighted |  |  | Weighted |  |  |  |  |  |  | Weighted |
|  |  |  |  |  | average |  |  | average |  |  |  |  |  |  | average |
|  | Number of |  |  | exercise |  |  | remaining |  |  | Number |  |  | exercise |
Range of exercise prices |  | shares |  |  | price |  |  | life (in years) |  |  | exercisable |  |  | price |
$93.60 - 169.92 |  |  | 2,205 |  |  | $ | 136.65 |  |  |  | 2.85 |  |  |  | 2,205 |  |  | $ | 136.65 |
$169.93 - 504.00 |  |  | 7,061 |  |  |  | 365.66 |  |  |  | 0.38 |  |  |  | 7,061 |  |  |  | 365.66 |
$93.60 - 504.00 |  |  | 9,266 |  |  |  |  |  |  |  |  |  |  |  | 9,266 |  |  |  |  |

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -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 number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding and exercisable options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: 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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