Income (Loss) Per Share (Reconciliation Between Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income (Loss) Per Share [Abstract]
Income (loss) from continuing operations before income taxes and discontinued operations	$ 757	$ (378)
Loss on sale of discontinued operations		(164)
Loss from discontinued operations, net of income taxes		(113)
Net income (loss)	757	(655)
Less: Loss allocated to non-controlling interest	(12)	(385)
Net income (loss) attributable to IntriCon shareholders	$ 769	$ (270)
Basic - weighted shares outstanding	6,929	6,826
Weighted shares assumed upon exercise of stock options	914
Diluted - weighted shares outstanding	7,843	6,826
Continuing operations	$ 0.11	$ 0.00
Discontinued operations		(0.04)
Net income (loss) per share:	0.11	(0.04)
Continuing operations	0.10	0.00
Discontinued operations		(0.04)
Net income (loss) per share:	$ 0.10	$ (0.04)