Commitments And Contingencies (Schedule Of Reconciliation Of Leases) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Cash flow (financing)	$ 20,654	$ 34,038
Interest expense	774,568	$ 1,013,176
ROU Operating Leases [Member
Leased asset balance	171,549
Liability balance	171,549
Cash flow (operating)
Cash flow (financing)
Interest expense	22,390
Finance Leases [Member
Leased asset balance	15,260
Liability balance
Cash flow (operating)
Cash flow (financing)
Interest expense