Summary of Inventory Values by Product Group (Detail) (USD $)	Mar. 31, 2014	Mar. 31, 2013
Inventory [Line Items]
Inventory, Net	$ 35,288,559	$ 39,219,168
Prime Coil Inventory
Inventory [Line Items]
Raw Materials	7,685,177	10,981,835
Non-Standard Coil Inventory
Inventory [Line Items]
Raw Materials	2,572,787	3,741,718
Tubular
Inventory [Line Items]
Raw Materials	463,254	3,308,419
Finished Goods	$ 24,567,341	$ 21,187,196