Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
OPERATING ACTIVITIES
Net loss	$ (1,108,867)	$ (1,349,365)
Adjustments to reconcile net loss to cash provided by operating activities:
Depreciation	530,968	614,373
Deferred taxes	(217,443)	(118,969)
Compensation expense for restricted stock	221,627	166,472
Change in postretirement benefits	5,933	5,477
Lower of cost or net realizable value inventory adjustment	274,093	955,605
Decrease (increase) in operating assets:
Accounts receivable	426,318	296,595
Inventories	8,894,641	12,013,518
Federal income taxes recoverable	(109,230)	(304,527)
Other current assets	(1,075,916)	(513,442)
Increase (decrease) in operating liabilities:
Accounts payable and accrued expenses	(4,199,863)	(2,730,307)
Income taxes payable		(159,694)
Contribution to retirement plan	100,500	100,500
Employee compensation and related expenses	(26,484)	74,094
Other non-current liabilities		18,658
NET CASH PROVIDED BY OPERATING ACTIVITIES	3,716,277	9,068,988
INVESTING ACTIVITIES
Purchase of property, plant and equipment	(2,933,637)	(796,253)
Increase in cash surrender value of officers’ life insurance	(8,647)	(8,740)
NET CASH USED IN INVESTING ACTIVITIES	(2,942,284)	(804,993)
FINANCING ACTIVITIES
Paycheck Protection Program loan proceeds	1,690,385
Cash dividends paid	(283,218)	(559,956)
Cash paid for principal portion of finance lease	(50,121)
Cash paid for share repurchases	(410,221)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	946,825	(559,956)
INCREASE IN CASH	1,720,818	7,704,039
CASH AT BEGINNING OF PERIOD	17,057,751	11,667,161
CASH AT END OF PERIOD	$ 18,778,569	$ 19,371,200