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Note 1 - Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Mar. 31, 2020
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
Years ended March 31, |  | 2020 |  |  | 2019 |
Continuing Operations |  | (In thousands, except per share amounts) |
Basic |  |  |  |  |  |  |  |
Continuing operations earnings (loss) |  | $ | 51,188 |  |  | $ | (36,483 | )
Deduct preferred stock dividends |  |  | 23 |  |  |  | 23 |
Undistributed earnings (loss) |  |  | 51,165 |  |  |  | (36,506 | )
Earnings (loss) attributable to participating preferred shareholders |  |  | 206 |  |  |  | (143 | )
Earnings (loss) attributable to common shareholders |  | $ | 50,959 |  |  | $ | (36,363 | )
Weighted average common shares outstanding |  |  | 9,264 |  |  |  | 9,652 |
Basic earnings (loss) from continuing operations per common share |  | $ | 5.50 |  |  | $ | (3.77 | )
Diluted |  |  |  |  |  |  |  |
Earnings (loss) attributable to common shareholders |  | $ | 50,959 |  |  | $ | (36,363 | )
Add dividends on convertible preferred stock |  |  | 20 |  |  |  | - |
Earnings (loss) attributable to common stock on a diluted basis |  | $ | 50,979 |  |  | $ | (36,363 | )
Weighted average common shares outstanding-basic |  |  | 9,264 |  |  |  | 9,652 |
Additional shares to be issued related to the equity compensation plan |  |  | 2 |  |  |  | - |
Additional shares to be issued under full conversion of preferred stock |  |  | 67 |  |  |  | - |
Total shares for diluted |  |  | 9,333 |  |  |  | 9,652 |
Diluted earnings (loss) from continuing operations per share |  | $ | 5.46 |  |  | $ | (3.77 | )
Years ended March 31, |  | 2020 |  |  | 2019 |
Discontinued Operations |  | (In thousands, except per share amounts) |
Basic |  |  |  |  |  |  |  |
Discontinued operations earnings |  | $ | 1,147 |  |  | $ | 42,230 |
Deduct preferred stock dividends |  |  | 23 |  |  |  | 23 |
Undistributed earnings |  |  | 1,124 |  |  |  | 42,207 |
Earnings attributable to participating preferred shareholders |  |  | 5 |  |  |  | 166 |
Earnings attributable to common shareholders |  | $ | 1,119 |  |  | $ | 42,041 |
Weighted average common shares outstanding |  |  | 9,264 |  |  |  | 9,652 |
Basic earnings from discontinued operations per common share |  | $ | 0.12 |  |  | $ | 4.36 |
Diluted |  |  |  |  |  |  |  |
Earnings attributable to common shareholders |  | $ | 1,119 |  |  | $ | 42,041 |
Add dividends on convertible preferred stock |  |  | 20 |  |  |  | 20 |
Earnings attributable to common stock on a diluted basis |  | $ | 1,139 |  |  | $ | 42,061 |
Weighted average common shares outstanding-basic |  |  | 9,264 |  |  |  | 9,652 |
Additional shares to be issued related to the equity compensation plan |  |  | 2 |  |  |  | 3 |
Additional shares to be issued under full conversion of preferred stock |  |  | 67 |  |  |  | 67 |
Total shares for diluted |  |  | 9,333 |  |  |  | 9,722 |
Diluted earnings from discontinued operations per share |  | $ | 0.12 |  |  | $ | 4.33 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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