Quarterly report pursuant to Section 13 or 15(d)

Business and Liquidity Uncertainties (Details Narrative)

v3.21.2
Business and Liquidity Uncertainties (Details Narrative) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Jun. 25, 2021
Dec. 31, 2020
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]            
Net Cash Provided by (Used in) Operating Activities     $ 8,972,000 $ (4,176,000)    
Cash Equivalents, at Carrying Value $ 22,900,000   22,900,000      
Marketable securities, unrealized loss 32,000   111,000      
[custom:DecreaseInFairValueOfInvestmentSecurities] 265,000   101,000      
Inventory Adjustments 87,000   $ 87,000     $ 167,000
Estimated useful lives description     ranges of estimated asset lives: building and improvements - ten to thirty-nine years; machinery and equipment including lab equipment - three to seven years; computer equipment and software - three to five years; and furniture and fixtures - five years.      
Cash and Cash Equivalents, at Carrying Value 8,533,000   $ 8,533,000     6,816,000
Cash 8,700,000   8,700,000      
Cash, FDIC Insured Amount 1,000,000.0   1,000,000.0      
Cash, Uninsured Amount 7,700,000   7,700,000      
Breakage revenue 100,000   100,000      
Contract with Customer, Liability 1,623,000   1,623,000     $ 331,000
Deferred revenue 1,403,000   1,403,000      
Share-based Payment Arrangement, Noncash Expense 934,000 $ 283,000 2,438,000 679,000    
Share-based Payment Arrangement, Expense     2,438,000 679,000    
Research and Development Expense 208,000 57,000 416,000 181,000    
Cooperative Incentive Promotion Costs [Member]            
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]            
Advertising and incentive promotion expenses, continuing operation $ 136,000 $ 451,000 $ 415,000 $ 547,000    
Investment Shares [Member]            
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]            
Investment Owned, Balance, Shares         1,260,619  
Investment Owned, at Fair Value         $ 315,000  
Share Price         $ 0.17  
Marketable Securities [Member] | Minimum [Member]            
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]            
Debt Instrument, Interest Rate During Period     1.90%      
Marketable Securities [Member] | Maximum [Member]            
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]            
Debt Instrument, Interest Rate During Period     3.62%