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Note G - Stock-based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Share-based Payment Arrangement, Option, Activity [Table Text Block] |
|  |  |  |  |  |  |  |  |  | Weighted- Average |  |  |  |  |
|  |  |  |  |  | Weighted- |  |  | Remaining |  |  | Aggregate |
|  | Number of |  |  | Average |  |  | Contractual |  |  | Intrinsic Value |
In thousands |  | Shares |  |  | Exercise Price |  |  | Term (Years) |  |  | (Thousands) |
Options outstanding at December 31, 2018 |  |  | 171,369 |  |  | $ | 60.66 |  |  |  |  |  |  |  |  |
Granted in 2019 |  |  | 31,906 |  |  |  | 1.57 |  |  |  |  |  |  |  |  |
Exercised in 2019 |  |  | — |  |  |  | — |  |  |  |  |  |  |  | — |
Unvested options forfeited in 2019 |  |  | (25,392 | ) |  |  | 10.00 |  |  |  |  |  |  |  |  |
Vested options expired in 2019 |  |  | (51,187 | ) |  |  | 59.84 |  |  |  |  |  |  |  |  |
Options outstanding at December 31, 2019 |  |  | 126,696 |  |  | $ | 57.48 |  |  |  |  |  |  |  |  |
Adjustment and Correction |  |  | (7,500 | ) |  |  | 53.61 |  |  |  |  |  |  |  |  |
Granted in 2020 |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Exercised in 2020 |  |  | — |  |  |  | — |  |  |  |  |  |  |  | — |
Unvested options forfeited in 2020 |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Vested options expired in 2020 |  |  | (31,449 | ) |  |  | 90.89 |  |  |  |  |  |  |  |  |
Options outstanding at December 31, 2020 |  |  | 87,747 |  |  | $ | 40.25 |  |  |  | 5.46 |  |  |  | — |
Vested and expected to vest at December 31, 2020 |  |  | 87,747 |  |  | $ | 40.25 |  |  |  | 5.46 |  |  |  | — |
Exercisable at December 31, 2020 |  |  | 80,336 |  |  | $ | 43.28 |  |  |  | 5.25 |  |  |  | — |
Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block] |
Range of |  | Number |  |  | Weighted-Average |  |  | Weighted-Average |  |  | Number |  |  | Weighted-Average |
Exercise Prices |  | Outstanding |  |  | Exercise Price |  |  | Remaining Life (Years) |  |  | Exercisable |  |  | Exercise Price |
$1.57 - 7.40 |  |  | 46,727 |  |  | $ | 3.42 |  |  |  | 8.32 |  |  |  | 39,316 |  |  | $ | 2.67 |
$76.80 - 115.2 |  |  | 39,320 |  |  |  | 80.43 |  |  |  | 2.30 |  |  |  | 39,320 |  |  |  | 80.43 |
$123.10 - 184.65 |  |  | 1,700 |  |  |  | 123.10 |  |  |  | 0.10 |  |  |  | 1,700 |  |  |  | 123.10 |
|  |  | 87,747 |  |  | $ | 40.25 |  |  |  | 5.46 |  |  |  | 80,336 |  |  | $ | 43.28 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | Year Ended December 31, |
|  | 2020 |  |  | 2019 |
Expected term (in years) |  |  | — |  |  |  | 5.50 |
Expected stock price volatility |  |  | — |  |  |  | 40.53 | %
Risk-free interest rate |  |  | — |  |  |  | 1.86 | %
Share-based Payment Arrangement, Stock Appreciation Right, Activity [Table Text Block] |
|  |  |  |  |  |  |  |  |  | Weighted-Average |
|  |  |  |  |  | Weighted- |  |  | Remaining |
|  | Number of |  |  | Average |  |  | Contractual Term |
|  | Units |  |  | Grant Price |  |  | (Years) |
Cash stock appreciation rights outstanding at December 31, 2018 |  |  | 12,676 |  |  | $ | 9.70 |  |  |  | 8.48 |
Granted in 2019 |  |  | — |  |  |  | — |  |  |  |  |
Exercised in 2019 |  |  | — |  |  |  | — |  |  |  |  |
Expired in 2019 |  |  | — |  |  |  | — |  |  |  |  |
Forfeited in 2019 |  |  | — |  |  |  | — |  |  |  |  |
Cash stock appreciation rights outstanding at December 31, 2019 |  |  | 12,676 |  |  | $ | 9.70 |  |  |  | 7.48 |
Granted in 2020 |  |  | — |  |  |  | — |  |  |  |  |
Exercised in 2020 |  |  | — |  |  |  | — |  |  |  |  |
Expired in 2020 |  |  | (9,507 | ) |  |  | 9.70 |  |  |  |  |
Forfeited in 2020 |  |  | (3,169 | ) |  |  | 9.70 |  |  |  |  |
Cash stock appreciation rights outstanding at December 31, 2020 |  |  | — |  |  | $ | — |  |  |  | — |
Vested balance at December 31, 2020 |  |  | — |  |  | $ | — |  |  |  | — |
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] |
|  |  |  |  |  | Weighted- |
|  | Number of |  |  | Average Grant |
|  | Shares |  |  | Date Fair Value |
Unvested shares outstanding at December 31, 2018 |  |  | 107,415 |  |  | $ | 9.98 |
Granted in 2019 |  |  | 383,569 |  |  |  | 3.26 |
Settled in 2019 |  |  | (39,858 | ) |  |  | 9.65 |
Forfeited in 2019 |  |  | (22,835 | ) |  |  | 10.07 |
Unvested shares outstanding at December 31, 2019 |  |  | 428,291 |  |  | $ | 3.99 |
Adjustment and Correction |  |  | 13,158 |  |  |  | 3.99 |
Granted in 2020 |  |  | 730,150 |  |  |  | 2.02 |
Settled in 2020 |  |  | (303,020 | ) |  |  | 3.96 |
Forfeited in 2020 |  |  | (78,870 | ) |  |  | 3.46 |
Unvested shares outstanding at December 31, 2020 |  |  | 789,709 |  |  | $ | 2.22 |
Schedule of Share-based Compensation, Phantom Shares, Outstanding Activity [Table Text Block] |
|  |  |  |  |  | Weighted- |
|  | Number of |  |  | Average Grant |
|  | Units |  |  | Date Fair Value |
Phantom stock units outstanding at December 31, 2018 |  |  | 32,811 |  |  | $ | 14.39 |
Granted in 2019 |  |  | — |  |  |  | — |
Settled in 2019 |  |  | (11,449 | ) |  |  | 16.01 |
Forfeited in 2019 |  |  | (6,542 | ) |  |  | 13.49 |
Phantom stock units outstanding at December 31, 2019 |  |  | 14,820 |  |  | $ | 13.55 |
Adjustment and Correction |  |  | (786 | ) |  |  |  |
Granted in 2020 |  |  | — |  |  |  | — |
Settled in 2020 |  |  | (8,032 | ) |  |  | 16.40 |
Forfeited in 2020 |  |  | (1,656 | ) |  |  | 9.70 |
Phantom stock units outstanding at December 31, 2020 |  |  | 4,346 |  |  | $ | 9.70 |
Schedule of Nonvested Performance-based Units Activity [Table Text Block] |
|  |  |  |  |  | Weighted- |
|  | Number of |  |  | Average Grant- |
|  | Units |  |  | Date Fair Value |
Performance stock units outstanding at December 31, 2018 |  |  | 38,529 |  |  | $ | 10.50 |
Granted in 2019 |  |  | 417,035 |  |  |  | 2.67 |
Settled in 2019 |  |  | — |  |  |  | — |
Forfeited in 2019 |  |  | (247,635 | ) |  |  | 3.36 |
Performance stock units outstanding at December 31, 2019 |  |  | 207,929 |  |  | $ | 3.27 |
Adjustment and Correction |  |  | (52,632 | ) |  |  | — |
Granted in 2020 |  |  | — |  |  |  |  |
Settled in 2020 |  |  | (4,225 | ) |  |  | 9.70 |
Forfeited in 2020 |  |  | (118,804 | ) |  |  | 2.79 |
Performance stock units outstanding at December 31, 2020 |  |  | 32,268 |  |  | $ | 4.14 |
Schedule of Cash Performance Units, Activity [Table Text Block] |
|  |  |  |  |  | Weighted- |
|  | Number of |  |  | Average Grant- |
|  | Shares |  |  | Date Fair Value |
Cash performance stock units outstanding at December 31, 2018 |  |  | 3,778 |  |  | $ | 26.90 |
Granted in 2019 |  |  | — |  |  |  | — |
Settled in 2019 |  |  | — |  |  |  | — |
Forfeited in 2019 |  |  | (3,778 | ) |  |  | 26.90 |
Cash performance stock units outstanding at December 31, 2019 |  |  | — |  |  |  | — |
Granted in 2020 |  |  | — |  |  |  | — |
Settled in 2020 |  |  | — |  |  |  | — |
Forfeited in 2020 |  |  | — |  |  |  | — |
Cash performance stock units outstanding at December 31, 2020 |  |  | — |  |  | $ | — |

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