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v3.21.2

Note 13 - Industry Segment Data - Segment Information (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2021 | Mar. 31, 2020
Revenue from Contract with Customer, Including Assessed Tax | $ 49,214,204 | $ 28,502,049 | $ 24,861,680 | $ 23,524,600 | $ 32,980,607 | $ 28,150,817 | $ 39,995,580 | $ 40,975,320 | $ 126,102,533 | $ 142,102,324
Operating profit (loss) |  |  |  |  |  |  |  |  | 15,725,395 | (6,857,462)
Interest expense |  |  |  |  |  |  |  |  | (24,619) | (4,806)
Other income (loss) |  |  |  |  |  |  |  |  | (503,422) | 19,260
TOTAL EARNINGS (LOSS) BEFORE INCOME TAXES |  |  |  |  |  |  |  |  | 15,221,973 | (6,838,202)
Identifiable assets | 95,008,809 |  |  |  | 77,344,088 |  |  |  | 95,008,809 | 77,344,088
Depreciation |  |  |  |  |  |  |  |  | 1,012,917 | 1,524,961
Capital expenditures |  |  |  |  |  |  |  |  | 4,609,617 | 4,935,361
Coil [Member] |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 95,264,555 | 99,762,892
Tubular [Member] |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 30,837,978 | 42,339,432
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |
Operating profit (loss) |  |  |  |  |  |  |  |  | 19,390,112 | (4,312,213)
Identifiable assets | 74,553,721 |  |  |  | 59,553,967 |  |  |  | 74,553,721 | 59,553,967
Operating Segments [Member] | Coil [Member] |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 95,264,555 | 99,762,892
Operating profit (loss) |  |  |  |  |  |  |  |  | 16,466,713 | 1,252,669
Identifiable assets | 56,670,109 |  |  |  | 35,894,510 |  |  |  | 56,670,109 | 35,894,510
Depreciation |  |  |  |  |  |  |  |  | 653,708 | 836,730
Capital expenditures |  |  |  |  |  |  |  |  | 4,505,589 | 4,060,911
Operating Segments [Member] | Tubular [Member] |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | 30,837,978 | 42,339,432
Operating profit (loss) |  |  |  |  |  |  |  |  | 2,923,399 | (5,564,882)
Identifiable assets | 17,883,612 |  |  |  | 23,659,457 |  |  |  | 17,883,612 | 23,659,457
Depreciation |  |  |  |  |  |  |  |  | 346,135 | 675,048
Capital expenditures |  |  |  |  |  |  |  |  | 78,061 | 841,817
Corporate, Non-Segment [Member] |  |  |  |  |  |  |  |  |  |
General corporate expenses |  |  |  |  |  |  |  |  | (3,640,098) | (2,540,443)
Identifiable assets | $ 20,455,088 |  |  |  | $ 17,790,121 |  |  |  | 20,455,088 | 17,790,121
Depreciation |  |  |  |  |  |  |  |  | 13,074 | 13,183
Capital expenditures |  |  |  |  |  |  |  |  | $ 25,967 | $ 32,633

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