Inventories - Summary of Inventory Values by Product Group (Detail) - USD ($)	Jun. 30, 2015	Mar. 31, 2015
Inventory [Line Items]
Inventory, Net	$ 40,169,832	$ 40,850,666
Prime Coil Inventory
Inventory [Line Items]
Raw Materials	9,778,816	8,419,340
Non-Standard Coil Inventory
Inventory [Line Items]
Raw Materials	1,521,315	1,804,635
Tubular
Inventory [Line Items]
Raw Materials	1,247,618	1,888,849
Finished Goods	$ 27,622,083	$ 28,737,842

Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.6(a))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 330

-SubTopic 10

-Section 35

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

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-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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