Goodwill (Narrative) (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2014 USD ($) entity
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Goodwill	$ 2,791,000	$ 2,791,000
Goodwill impairment	$ 0	$ 0
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Number of purchased companies | entity			3
Aggregate consideration			$ 5,500,000
Goodwill			$ 2,800,000