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BUSINESS SEGMENT (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Sales by geography
Total sales	$ 33,274,702	$ 34,493,838	$ 29,826,636
UNITED STATES
Sales by geography
Total sales	28,646,574	27,015,712	26,308,246
Long-lived assets
Long-lived assets	10,738,253	11,215,583	11,930,293
North and South America sales (excluding U.S.)
Sales by geography
Total sales	3,597,444	6,380,745	2,741,518
Other international sales
Sales by geography
Total sales	1,030,684	1,097,381	776,872
International
Long-lived assets
Long-lived assets	$ 113,494	$ 137,619	$ 161,744

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