Summary of Inventory Values by Product Group (Detail) (USD $)	Jun. 30, 2014	Mar. 31, 2014
Inventory [Line Items]
Inventory, Net	$ 38,913,148	$ 35,288,559
Prime Coil Inventory
Inventory [Line Items]
Raw Materials	9,963,999	7,685,177
Non-Standard Coil Inventory
Inventory [Line Items]
Raw Materials	1,798,628	2,572,787
Tubular
Inventory [Line Items]
Raw Materials	2,164,364	463,254
Finished Goods	$ 24,986,157	$ 24,567,341