Organization And Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Potentially dilutive common stock equivalents excluded from diluted earnings per share	100,000	970,001
Reversal of prior year accrued allowances		$ 1,749
Sales and Marketing Expenses [Member]
Advertising and promotion expense	254,283	113,474
Shipping and handling costs	$ 25,730	$ 59,896
Options [Member]
Stock option expired	180,001