Quarterly report pursuant to Section 13 or 15(d)

Organization And Summary Of Significant Accounting Policies (Narrative) (Details)

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Organization And Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Allowance for doubtful accounts $ 12,000   $ 12,000  
Class A Preferred Stock [Member]        
Antidilutive shares excluded from computation of basic earnings per share 26,909,028 26,909,028 26,909,028 26,909,028
Class E Preferred Stock [Member]        
Antidilutive shares excluded from computation of basic earnings per share 1,852,538 1,107,420 1,852,538 1,107,420
Stock Options [Member]        
Antidilutive shares excluded from computation of basic earnings per share 8,999,900 12,449,900 8,999,900 12,449,900
Warrants [Member]        
Antidilutive shares excluded from computation of basic earnings per share 9,000,000 9,000,000 9,000,000 9,000,000