Summary of Significant Accounting Policies - Summary of Inventory Values by Product Group (Detail) (USD $)	Mar. 31, 2015	Mar. 31, 2014
Inventory [Line Items]
Inventory, Net	$ 40,850,666us-gaap_InventoryNet	$ 35,288,559us-gaap_InventoryNet
Prime Coil Inventory
Inventory [Line Items]
Raw Materials	8,419,340	7,685,177
Non-Standard Coil Inventory
Inventory [Line Items]
Raw Materials	1,804,635	2,572,787
Tubular
Inventory [Line Items]
Raw Materials	1,888,849	463,254
Finished Goods	$ 28,737,842	$ 24,567,341

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

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=51655945&loc=d3e3927-108312

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 1

-Subparagraph (b)

-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.

+ References

+ Details

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