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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Mar. 31, 2015
Accounting Policies [Abstract] |
Summary of Inventory by Product Group | The following is a summary of inventory by product group:
|  | March 31 |
|  | 2015 |  |  | 2014 |
Prime coil inventory |  | $ | 8,419,340 |  |  | $ | 7,685,177 |
Non-standard coil inventory |  |  | 1,804,635 |  |  |  | 2,572,787 |
Tubular raw material |  |  | 1,888,849 |  |  |  | 463,254 |
Tubular finished goods |  |  | 28,737,842 |  |  |  | 24,567,341 |
|  | $ | 40,850,666 |  |  | $ | 35,288,559 |
Estimated Useful Lives of Various Classes of Assets | Depreciation is calculated primarily by the straight-line method over the estimated useful lives of the various classes of assets as follows:
Buildings |  |  | 20 years |
Machinery and equipment |  |  | 10 years |
Yard improvements |  |  | 5 to 10 years |
Loaders and other rolling stock |  |  | 5 to 10 years |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph b -Article 5 + Details
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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5 + Details
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