Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Consolidated Statements Of Operations [Abstract]
Revenue, net	$ 116,462	$ 90,637	$ 68,980
Cost of goods sold	79,299	63,890	52,264
Gross profit	37,163	26,747	16,716
Operating expenses:
Sales and marketing	12,369	9,447	4,700
General and administrative	13,009	10,339	9,154
Research and development	4,671	4,458	4,688
Restructuring charges (Note 3)			132
Total operating expenses	30,049	24,244	18,674
Operating income (loss)	7,114	2,503	(1,958)
Interest expense, net	(314)	(716)	(553)
Other expense, net	(769)	(367)	(602)
Income (loss) from continuing operations before income taxes and discontinued operations	6,031	1,420	(3,113)
Income tax expense	484	8	217
Income (loss) from continuing operations before discontinued operations	5,547	1,412	(3,330)
Loss from discontinued operations and impairment, net of income taxes (Note 2)		(128)	(1,770)
Loss on sale of discontinued operations (Note 2)		(164)
Net income (loss)	5,547	1,120	(5,100)
Less: Loss allocated to non-controlling interest		(938)	(157)
Net income (loss) attributable to IntriCon shareholders	$ 5,547	$ 2,058	$ (4,943)
Basic income (loss) per share attributable to IntriCon shareholders:
Continuing operations	$ 0.73	$ 0.34	$ (0.49)
Discontinued operations		(0.04)	(0.27)
Net income (loss) per share:	0.73	0.30	(0.76)
Diluted income (loss) per share attributable to IntriCon shareholders:
Continuing operations	0.64	0.32	(0.49)
Discontinued operations		(0.04)	(0.27)
Net income (loss) per share:	$ 0.64	$ 0.28	$ (0.76)
Average shares outstanding:
Basic	7,599	6,852	6,497
Diluted	8,630	7,307	6,497