Condensed Consolidated Statements of Income (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Condensed Consolidated Statements of Income (Unaudited)
Net sales	$ 8,364,390	$ 4,103,520	$ 17,669,339	$ 11,679,975
Cost of goods sold	6,687,313	4,033,370	13,957,825	10,299,398
Gross profit	1,677,077	70,150	3,711,514	1,380,577
Selling and administrative expenses	1,284,748	1,214,423	2,646,949	2,499,757
Operating profit (loss)	392,329	(1,144,273)	1,064,565	(1,119,180)
Other income	14,178	43,757	32,070	90,232
Income (loss) before income taxes	406,507	(1,100,516)	1,096,635	(1,028,948)
Provision (benefit) for income taxes	87,000	(321,000)	237,000	(306,000)
Net income (loss)	$ 319,507	$ (779,516)	$ 859,635	$ (722,948)
Per share data, basic and diluted:
Net income (loss) per share	$ 0.33	$ (0.81)	$ 0.89	$ (0.75)
Average common shares outstanding	966,132	966,132	966,132	966,132
Cash dividends declared per share	$ 0.22	$ 0.10	$ 0.44	$ 0.32