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Restatement of Previously Issued Financial Statements (Details 1) - USD ($) | 3 Months Ended | 12 Months Ended
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Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019
Prior Period Adjustment [Abstract] |  |  |  |  |  |  |  |  |  |
Reduction of net sales | $ 54,000 | $ 56,000 | $ 41,000 | $ 36,000 | $ 143,000 | $ 105,000 | $ 115,000 | $ 63,000 | $ 187,000 | $ 426,000
Increase in general and administrative expense for penalties | 13,000 | 15,000 | 12,000 | 11,000 | 16,000 | 13,000 | 14,000 | 8,000 | 51,000 | 51,000
Decrease in other income for interest expense | 23,000 | 21,000 | 18,000 | 15,000 | 14,000 | 10,000 | 8,000 | 5,000 | 77,000 | 37,000
Decrease in income tax benefit | 0 | 0 | 0 | 0 | (27,000) | (9,000) | 34,000 | 44,000 | 0 | 42,000
Total increase in net loss due to restatement items | $ 90,000 | $ 92,000 | $ 71,000 | $ 62,000 | $ 146,000 | $ 119,000 | $ 171,000 | $ 120,000 | $ 315,000 | $ 556,000

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- Definition The increase (decrease) during the reporting period in other expenses incurred but not yet paid. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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