Note 5 - Segment Information (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

			IKONICS
	Chromaline		Imaging		DTX		AMS			Unalloc.			Total
Net sales	$	8,475,743	$	3,709,318	$	294,929	$	952,230		$	—		$	13,432,220
Cost of goods sold		6,222,902		1,972,076		140,866		1,191,299			—			9,527,143
Gross profit (loss)		2,252,841		1,737,242		154,063		(239,069	)		—			3,905,077
Selling, general, and administrative*		1,297,045		880,404		125,752		275,147			2,441,256			5,019,604
Research and development*		—		—		—		—			671,493			671,493
Income (loss) from operations	$	955,796	$	856,838	$	28,311	$	(514,216	)	$	(3,112,749	)	$	(1,786,020	)

			IKONICS
	Chromaline		Imaging		DTX		AMS			Unalloc.			Total
Net sales	$	11,472,111	$	4,191,175	$	393,804	$	1,561,469		$	—		$	17,618,559
Cost of goods sold		8,389,404		2,273,641		157,650		1,400,675			—			12,221,370
Gross profit		3,082,707		1,917,534		236,154		160,794			—			5,397,189
Selling, general, and administrative*		1,832,473		1,081,847		149,924		361,342			2,058,000			5,483,586
Research and development*		—		—		—		—			870,279			870,279
Income (loss) from operations	$	1,250,234	$	835,687	$	86,230	$	(200,548	)	$	(2,928,279	)	$	(956,676	)

	Dec 31, 2020			Dec 31, 2019
Chromaline	$	1,676,592		$	1,916,066
IKONICS Imaging		396,116			304,791
DTX		35,983			13,919
AMS		57,676			252,363
Unallocated		(47,154	)		(52,421	)
Total	$	2,119,213		$	2,434,718