Long-term investments - Schedule of long term investments - debt securities (Details) - USD ($)	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Long term investments [Line Items]
Allowance for losses on debt security	$ (1,052,542)
Symbiont.IO [Member]
Long term investments [Line Items]
Accrued interest income	347,000	$ 27,000
Long Term Investments \| Symbiont.IO [Member]
Long term investments [Line Items]
Note receivable	2,027,178	2,000,000
Accrued interest income	320,000	27,178
Accrued recovery of legal fees	55,364	0
Allowance for losses on debt security	(1,052,542)	0
Note receivable	$ 1,350,000	$ 2,027,178

Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(4))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(4))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_AccruedInvestmentIncomeReceivable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant