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Note 10 - Revenue (Tables) | 12 Months Ended
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Mar. 31, 2020
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Fiscal Year Ended March 31, |
|  | 2020 |  |  | 2019 |
Coil Segment: |  |  |  |  |  |  |  |
Prime Coil |  |  | 87,222,853 |  |  |  | 106,436,452 |
Non-standard Coil |  |  | 11,792,212 |  |  |  | 16,867,632 |
Customer Owned Coil |  |  | 747,827 |  |  |  | 1,251,394 |
|  |  | 99,762,892 |  |  |  | 124,555,478 |
Tubular Segment: |  |  |  |  |  |  |  |
Manufactured Pipe |  |  | 34,974,506 |  |  |  | 45,689,886 |
Mill Reject Pipe |  |  | 7,364,926 |  |  |  | 16,072,129 |
Pipe Finishing Services |  |  | - |  |  |  | 837,000 |
|  |  | 42,339,432 |  |  |  | 62,599,015 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 + Details
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