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Note 5 - Long-term Debt (Tables) | 12 Months Ended
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Mar. 31, 2018
Notes Tables |
Schedule of Long-term Debt Instruments [Table Text Block] |
|  | 2018 |  |  | 2017 |
|  | (In thousands) |
Revolving credit facility 3.35% and 2.22%, due through 2022 |  | $ | 293,459 |  |  | $ | 214,781 |
Farm Credit term loan 4.48% and 3.38%, due 2022 |  |  | 99,871 |  |  |  | 99,836 |
Bluegrass tax exempt bonds 3.11%, due 2033 |  |  | 9,983 |  |  |  | - |
Secured promissory note 6.98%, due through 2022 |  |  | 8,438 |  |  |  | 10,340 |
Lease financing obligations 2.62%, due through 2020 |  |  | 4,028 |  |  |  | 4,679 |
Secured promissory note 6.35%, due through 2020 |  |  | 1,046 |  |  |  | 1,782 |
Economic development note 2.00%, due through 2021 |  |  | 793 |  |  |  | 999 |
Other |  |  | 216 |  |  |  | 216 |
|  |  | 417,834 |  |  |  | 332,633 |
Less current portion |  |  | 3,702 |  |  |  | 3,495 |
|  | $ | 414,132 |  |  | $ | 329,138 |
Schedule of Maturities of Long-term Debt [Table Text Block] |
2019 |  | $ | 3,702 |
2020 |  |  | 3,217 |
2021 |  |  | 5,518 |
2022 |  |  | 395,197 |
2023 |  |  | - |
Thereafter |  |  | 10,200 |
Total |  | $ | 417,834 |

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- Definition Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
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