Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Sales	$ 54,056,343	$ 61,994,918
Cost of goods sold	44,376,620	50,706,094
Gross margin	9,679,723	11,288,824
Expenses:
Selling, general and administrative expenses	8,701,499	8,983,152
Loss from disposal of equipment	40,045	30,325
Depreciation and amortization	286,747	320,744
Total operating expenses	9,028,291	9,334,221
Operating Income	651,432	1,954,603
Other expense (income)
Other income, net	(216,465)	(84,649)
Interest expense	149,540	199,243
Total other expense (income)	(66,925)	114,594
Income from operations before income taxes	718,357	1,840,009
Income tax expense	60,672	1,223
Income from operations	657,685	1,838,786
Net Income	$ 657,685	$ 1,838,786
Basic net income per common share:
Net income from operations	$ 0.02	$ 0.07
Diluted net income per common share:
Net income from operations	$ 0.02	$ 0.07
Weighted-average number of common shares
Basic	26,924,381	26,918,371
Diluted	27,024,838	27,437,390