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Employee Benefits (Details 5) - CHF (SFr)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Employee Benefits [Abstract]      
Actuarial loss (gain) arising from changes in financial assumptions SFr 360,541 SFr (119,117) SFr (150,552)
Actuarial loss arising from experience adjustments (215,156) (1,792,265) 211,331
Actuarial gain arising from demographic assumptions
Return on plan assets excluding interest income (73,375) 634,190 (332,759)
Total defined benefit cost for the year recognized in the other comprehensive loss SFr 72,010 SFr (1,277,192) SFr (271,980)