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Concentrations Of Credit Risk And Economic Dependence (Narrative) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Concentration Risk [Line Items]
Accounts receivable approximately	$ 69,973		$ 13,459
Accounts payable approximately	$ 189,008		$ 273,606
Net Revenue [Member] \| One Customer [Member]
Concentration Risk [Line Items]
Concentration risk percentage	82.00%	100.00%
Net Revenue [Member] \| Second Customer [Member]
Concentration Risk [Line Items]
Concentration risk percentage	18.00%
Net Revenue [Member] \| International Sales [Member]
Concentration Risk [Line Items]
Concentration risk percentage	68.00%	10.00%
Accounts Receivable [Member] \| One Customer [Member]
Concentration Risk [Line Items]
Concentration risk percentage	62.00%		100.00%
Accounts receivable approximately	$ 4,360,000		$ 1,350,000
Accounts Receivable [Member] \| Second Customer [Member]
Concentration Risk [Line Items]
Concentration risk percentage	38.00%
Accounts receivable approximately	$ 2,640,000
Purchases [Member] \| One Vendor [Member]
Concentration Risk [Line Items]
Concentration risk percentage	66.00%	100.00%
Purchases [Member] \| Second Vendor [Member]
Concentration Risk [Line Items]
Concentration risk percentage	18.00%
Accounts Payable [Member] \| One Vendor [Member]
Concentration Risk [Line Items]
Concentration risk percentage	100.00%		100.00%
Accounts payable approximately	$ 2,390,000		$ 10,070,000