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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% |  |  |

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