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v3.21.2

Note 4 - Debt (Details Textual) - USD ($) |  |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2021 | Apr. 23, 2021 | Jan. 01, 2019 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Due to Related Parties, Noncurrent, Total | $ 1,175,361 |  |  | $ 1,175,361 |  | $ 1,175,361 |  | $ 1,123,769 |  |
Share Price (in dollars per share) |  |  | $ 3.32 |  |  |  |  |  |  |
Flexo Universal [Member] |  |  |  |  |  |  |  |  |  |
Long-term Debt, Total | 3,000,000 |  |  | 3,000,000 |  | 3,000,000 |  |  |  |
Line of Credit [Member] | Flexo Universal [Member] |  |  |  |  |  |  |  |  |  |
Extinguishment of Debt, Amount |  |  |  |  |  |  |  | 260,000 |  |
Conversion of Related Party Debt to Equity [Member] |  |  |  |  |  |  |  |  |  |
Debt Conversion, Original Debt, Amount |  |  | $ 600,000 |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued (in shares) |  |  | 181,000 |  |  |  |  |  |  |
John H Schwan [Member] |  |  |  |  |  |  |  |  |  |
Due to Related Parties, Total | 1,175,361 |  |  | 1,175,361 |  | 1,175,361 |  | 1,123,769 |  |
Promissory Note [Member] | John H Schwan [Member] |  |  |  |  |  |  |  |  |  |
Due to Related Parties, Noncurrent, Total |  |  | $ 997,019 |  |  |  |  |  |  | $ 1,600,000
Debt Instrument, Interest Rate, Stated Percentage |  |  | 6.00% |  |  |  |  |  |  |
Repayments of Related Party Debt |  |  |  |  |  | 0 |  |  | $ 0 |
Interest Expense, Related Party |  |  |  | 17,000 | $ 16,000 | 51,000 | $ 48,000 |  |  |
Promissory Note [Member] | Alex Chao [Member] |  |  |  |  |  |  |  |  |  |
Due to Related Parties, Noncurrent, Total | $ 166,667 |  |  | $ 166,667 |  | $ 166,667 |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 3.00% |  |  | 3.00% |  | 3.00% |  |  |  |
Line Financial Agreement [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Number of Installments for Periodic Payment | 48 |  |  | 48 |  | 48 |  |  |  |
Debt Instrument, Periodic Payment, Total | $ 15,234 |  |  |  |  |  |  |  |  |
Debt Instrument, Collateral Monitoring Fee, Percent | 4.62% |  |  |  |  |  |  |  |  |
Debt Instrument, Fee Amount, Percent | 1.25% |  |  | 1.25% |  | 1.25% |  |  |  |
Debt Instrument, Extension Term (Year) | 1 year |  |  |  |  |  |  |  |  |
Debt Instrument, Renewal Fee, Percent | 1.25% |  |  | 1.25% |  | 1.25% |  |  |  |
Debt Instrument, Covenant, Tangible Net Worth | $ 4,000,000 |  |  |  |  |  |  |  |  |
Line Financial Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Expenditures Amount | $ 1,000,000 |  |  |  |  |  |  |  |  |
Line Financial Agreement [Member] | Prime Rate [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Reference Rate | 3.25% |  |  | 3.25% |  | 3.25% |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.95% |  |  |  |  |  |  |  |  |
Three Lines of Credit [Member] | Flexo Universal [Member] |  |  |  |  |  |  |  |  |  |
Long-term Line of Credit, Total |  |  |  |  |  |  |  | $ 260,000 |  |
PNC [Member] | PNC Agreements [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Increase (Decrease) |  |  |  |  |  | 4.00% |  |  |  |
Debt Instrument, Forbearance Fee | $ 250,000 | $ 1,000,000 |  |  |  |  |  |  |  |
Debt Instrument, Increase (Decrease) in Forbearance Fee if Equity Issuance Occurs |  | (250,000) |  |  |  |  |  |  |  |
Debt Instrument, Forbearance Fee if Equity Issuance Occurs |  | 750,000 |  |  |  |  |  |  |  |
Debt Instrument, Increase (Decrease) in Forbearance Fee if Full Cash Payments Received |  | (500,000) |  |  |  |  |  |  |  |
Debt Instrument, Forbearance Fee if Full Cash Payments Received |  | 250,000 |  |  |  |  |  |  |  |
Forbearance Expense |  |  |  | $ 250,000 |  | $ 250,000 |  |  |  |
PNC [Member] | PNC Agreements [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 9,000,000 |  |  |  |  |  |  |  |
PNC [Member] | PNC Agreements [Member] | Term Loan [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | 6,000,000 |  |  |  |  |  |  |  |
Long-term Debt, Total |  | $ 2,000,000 |  |  |  |  |  |  |  |
Line Financial [Member] | Line Financial Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 6,000,000 |  |  | 6,000,000 |  | 6,000,000 |  |  |  |
Line Financial [Member] | Line Financial Agreement [Member] | Term Loan [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ 731,250 |  |  | $ 731,250 |  | $ 731,250 |  |  |  |

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