Note K - Revenue - Disaggregation of Revenue (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Net Sales	$ 111,860,093	$ 51,655,943	$ 423,355,592	$ 210,143,277
Coil [Member]
Net Sales	100,231,001	41,795,586	372,830,186	172,814,243
Coil [Member] | Prime Coil [Member]
Net Sales	99,100,019	39,588,438	368,583,106	164,096,180
Coil [Member] | Secondary Coil [Member]
Net Sales	796,112	1,852,272	3,219,043	7,704,262
Coil [Member] | Customer Owned [Member]
Net Sales	334,870	354,876	1,028,037	1,013,801
Tubular [Member]
Net Sales	11,629,092	9,860,357	50,525,406	37,329,034
Tubular [Member] | Manufactured Pipe [Member]
Net Sales	11,629,092	6,906,450	50,071,386	27,889,886
Tubular [Member] | Mill Reject Pipe [Member]
Net Sales	$ 0	$ 2,953,907	$ 454,020	$ 9,439,148