Capital and Reserves (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2018

Dec. 31, 2017

Capital and Reserves [Abstract]

Schedule of issued share capital

	Common Shares Number
	2018			2017
As of January 1		48,373,890			34,329,704
Common shares issued for capital increase with a nominal value of CHF 0.40 each		12,800,000			10,000,000
Adjustment during the Merger:
Issuance of Auris NewCo Shares		6,117,388			—
Cancellation of Auris OldCo Shares		(61,173,890	)		—
Common shares issued for capital increase with a nominal value of CHF 0.02 each		17,948,717			—
Shares outstanding after Merger on March 13, 2018		24,066,105			—
Total, as of September 30, 2018		24,066,105			44,329,704

	December 31, 2017				December 31, 2016
	Number		CHF		Number		CHF
Common shares with a nominal value of CHF 0.40 each		48,373,890		19,349,556		34,329,704		13,731,881
Total		48,373,890		19,349,556		34,329,704		13,731,881

	Common Shares (Number)
	2017		2016
As of January 1		34,329,704		34,303,891
Common shares issued or for stock options exercises with a nominal value of CHF 0.40 each
Common shares issued for the follow-on offering with a nominal value of CHF 0.40 each		14,044,186
Restricted shares issue for bonus purposes nominal value of CHF 0.40 each		—		25,813
Total, as of December 31		48,373,890		34,329,704