Condensed Consolidated Statements of Income (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Condensed Consolidated Statements of Income
Net sales	$ 9,435,508	$ 9,820,730	$ 18,918,835	$ 19,417,125
Cost of goods sold	7,366,100	7,211,820	14,592,916	14,379,598
Gross profit	2,069,408	2,608,910	4,325,919	5,037,527
Selling and administrative expenses	1,420,575	1,449,902	2,926,847	2,908,621
Operating profit	648,833	1,159,008	1,399,072	2,128,906
Other income	22,522	16,051	43,205	29,210
Income before provision for income taxes	671,355	1,175,059	1,442,277	2,158,116
Provision for income taxes	209,000	380,000	469,000	716,000
Net income	$ 462,355	$ 795,059	$ 973,277	$ 1,442,116
Per share data, basic and diluted:
Net income per share	$ 0.48	$ 0.82	$ 1.01	$ 1.49
Average common shares outstanding	966,132	966,132	966,132	966,132
Cash dividends declared per share	$ 0.20	$ 0.18	$ 0.75	$ 0.61