Note 5 - Segment Information (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

			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	)

			IKONICS
	Chromaline		Imaging		DTX		AMS			Unalloc.			Total
Net sales	$	11,610,414	$	4,397,826	$	420,714	$	1,784,699		$	—		$	18,213,653
Cost of goods sold		7,949,894		2,323,425		137,039		1,549,268			—			11,959,626
Gross profit		3,660,520		2,074,401		283,675		235,431			—			6,254,027
Selling, general, and administrative*		1,777,197		1,023,422		150,698		367,533			2,032,116			5,350,966
Research and development*		—		—		—		—			677,242			677,242
Income (loss) from operations	$	1,883,323	$	1,050,979	$	132,977	$	(132,102	)	$	(2,709,358	)	$	225,819

	Dec 31, 2019			Dec 31, 2018
Chromaline	$	1,916,066		$	1,550,411
IKONICS Imaging		304,791			360,551
DTX		13,919			15,692
AMS		252,363			331,708
Unallocated		(52,421	)		(43,147	)
Total	$	2,434,718		$	2,215,215