Income (Loss) Per Share (Reconciliation Between Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income (Loss) Per Share [Abstract]
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 - weighted shares outstanding	8,748	7,599	6,852
Weighted shares assumed upon exercise of stock awards		1,031	455
Diluted - weighted shares outstanding	8,748	8,630	7,307
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
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