Organization And Summary Of Significant Accounting Policies (Components Of Accounts Receivable, Net) (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Organization And Summary Of Significant Accounting Policies Components Of Accounts Receivable Net Details
Trade Accounts Receivables at period end	$ 2,871,902	$ 4,561,782
Reserve for estimated marketing allowances, cash discounts and other incentives	173,426	194,061	$ 1,200,792
Total Accounts Receivable, net	$ 2,698,476	$ 4,367,721