Organization And Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($)	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Potentially dilutive common stock equivalents excluded from diluted earnings per share	870,001	950,003
Accrued sales allowances recovered	$ 0	$ 1,749
Sales and Marketing Expenses [Member]
Advertising and promotion expense	171,457	4,918
Shipping and handling costs	$ 7,866	$ 26,353
Options [Member]
Stock option expired	100 thousand stock options expired.

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Amount of increase in valuation and qualifying accounts and reserves from recovery of amount previously written off or reestablishment of reserve previously utilized.

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