Employee benefits, Employee Tax-Deferred Savings Plans (Details) - Plan 401K [Member]	12 Months Ended
Dec. 31, 2021 USD ($)
Employee Tax-Deferred Savings Plans [Abstract]
Defined contribution plan employer percentage	5.00%
Defined contribution plan employer amount	$ 85,946

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration