Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Consolidated Statements Of Operations [Abstract]
Revenue, net	$ 113,493	$ 113,948	$ 86,954
Cost of goods sold	82,507	77,717	61,684
Gross profit	30,986	36,231	25,270
Operating expenses:
Sales and marketing	11,498	11,467	8,262
General and administrative	13,933	11,718	8,966
Research and development	3,830	4,671	4,458
Impairment loss (Note 5 and 6)	3,765
Total operating expenses	33,026	27,856	21,686
Operating income (loss)	(2,040)	8,375	3,584
Interest income (expense), net	920	(314)	(716)
Other expense, net	(743)	(815)	(406)
Income (loss) from continuing operations before income taxes, non-controlling interest and discontinued operations	(1,863)	7,246	2,462
Income tax expense	201	484	8
Income (loss) from continuing operations before non-controlling interest and discontinued operations	(2,064)	6,762	2,454
Loss on disposal of discontinued operations (Note 2)	(1,116)		(164)
Loss from discontinued operations, net of income taxes (Note 2)	(597)	(1,215)	(1,170)
Net income (loss)	(3,777)	5,547	1,120
Less: Loss allocated to non-controlling interest			(938)
Net income (loss) attributable to IntriCon shareholders	$ (3,777)	$ 5,547	$ 2,058
Basic income (loss) per share:
Continuing operations	$ (0.23)	$ 0.89	$ 0.50
Discontinued operations	(0.20)	(0.16)	(0.20)
Net income (loss) per share:	(0.43)	0.73	0.30
Diluted income (loss) per share:
Continuing operations	(0.23)	0.78	0.46
Discontinued operations	(0.20)	(0.14)	(0.18)
Net income (loss) per share:	$ (0.43)	$ 0.64	$ 0.28
Average shares outstanding:
Basic	8,748	7,599	6,852
Diluted	8,748	8,630	7,307