Fair value measurements (Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details)	12 Months Ended
Dec. 31, 2020 USD ($)
Changes in the fair value of Level 3 liabilities measured at fair value on recurring basis
Balance at the beginning of the period
Acquired from Curetis	615,831
Change in Fair Value	(517,680)
Effect of Foreign Exchange Rates	14,701
Balance at the end of the period	112,852
Participation percentage interest liability [Member]
Changes in the fair value of Level 3 liabilities measured at fair value on recurring basis
Balance at the beginning of the period
Acquired from Curetis	173,373
Change in Fair Value	(75,222)
Effect of Foreign Exchange Rates	14,701
Balance at the end of the period	112,852
Embedded conversion option liability [Member]
Changes in the fair value of Level 3 liabilities measured at fair value on recurring basis
Balance at the beginning of the period
Acquired from Curetis	442,458
Change in Fair Value	(442,458)
Effect of Foreign Exchange Rates
Balance at the end of the period

Effect of foreign exchange rates.

No definition available.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

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- Definition

Amount of purchases of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

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- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

+ Details

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- Details

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