Organization And Summary Of Significant Accounting Policies (Components Of Accounts Receivable, Net) (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Organization And Summary Of Significant Accounting Policies Components Of Accounts Receivable Net
Trade Accounts Receivables at period end	$ 2,550,125	$ 429,405
Reserve for estimated marketing allowances, cash discounts and other incentives	173,426	364,894	$ 194,061
Total Accounts Receivable, net	$ 2,376,699	$ 64,511