Condensed Consolidated Statements of Operations - Unaudited - USD ($)	3 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Net Sales	$ 48,193,318	$ 23,083,269
Costs and expenses
Costs of goods sold	42,000,840	21,539,959
General, selling and administrative costs	1,492,740	1,038,394
Costs and expenses, total	43,493,580	22,578,353
EARNINGS FROM OPERATIONS	4,699,738	504,916
Interest and other income	(62,775)	(4,375)
EARNINGS BEFORE INCOME TAXES	4,762,513	509,291
Income tax provision:
Current	1,066,456
Deferred	96,164	144,961
Income tax	1,162,620	144,961
NET EARNINGS	$ 3,599,893	$ 364,330
Average number of common shares outstanding:
Basic (in shares)	7,009,444	7,009,444
Diluted (in shares)	7,009,444	7,009,444
Net earnings per share:
Basic (in dollars per share)	$ 0.51	$ 0.05
Diluted (in dollars per share)	0.51	0.05
Cash dividends declared per common share (in dollars per share)	$ 0.03	$ 0.01