Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2019

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	March 31
	201 9		2018 As Adjusted
Prime coil inventory	$	26,240,439	$	14,185,858
Non-standard coil inventory		2,078,008		2,971,324
Tubular raw material		4,418,750		6,734,076
Tubular finished goods		16,324,889		21,438,176
	$	49,062,086	$	45,329,434

Property, Plant and Equipment [Table Text Block]

Buildings (in years)		20
Machinery and equipment (in years)	10	to	15
Yard improvements (in years)	5	to	15
Loaders and other rolling stock (in years)	5	to	10