Condensed Consolidated Statements of Operations (USD $)	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net sales	$ 31,544,474	$ 26,310,369	$ 59,448,996	$ 55,892,512
Costs and expenses
Costs of goods sold	29,123,545	25,232,456	55,986,005	52,370,754
General, selling and administrative costs	1,296,852	1,045,656	2,431,429	2,350,559
Costs and Expenses, Total	30,420,397	26,278,112	58,417,434	54,721,313
Interest and other income	(15,282)	(15,500)	(30,534)	(31,007)
Earnings before income taxes	1,139,359	47,757	1,062,096	1,202,206
Provision for (benefit from) income taxes:
Current	401,221	43,243	479,656	492,179
Deferred	(27,517)	(23,145)	(64,965)	(125,991)
Income Tax Expense (Benefit), Total	373,704	20,098	414,691	366,188
Net earnings	$ 765,655	$ 27,659	$ 647,405	$ 836,018
Weighted average number of common shares outstanding:
Basic	6,799,444	6,799,444	6,799,444	6,799,444
Diluted	6,799,444	6,799,444	6,799,444	6,799,444
Net earnings per share:
Basic	$ 0.11	$ 0.00	$ 0.10	$ 0.12
Diluted	$ 0.11	$ 0.00	$ 0.10	$ 0.12
Cash dividends declared per common share	$ 0.02	$ 0.08	$ 0.04	$ 0.16