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Notes Payable, Related Party Notes Payable and Finance Lease Obligations (Details) - USD ($) |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Jun. 14, 2021 | Dec. 31, 2019 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Notes Payable, Related Party Notes Payable and Finance Lease Obligations (Details) [Line Items] |  |  |  |  |  |  |
Debt expiring date |  | Dec. 30, 2022 |  |  |  |  |
Loan and security agreement, description |  |  |  |  | the Company entered into the First Amendment to the Loan and Security Agreement (“First Amendment”). The terms of the amendment increase the Term Loan to $5,685,000. The repayment terms of the term loan were amended to provide monthly principal installments in the amount of $67,679 beginning on December 1, 2020, with a final payment of any unpaid balance of principal and interest payable on December 30, 2022. Additionally, the date by which certain subordinated third-party notes need to be extended was changed from September 30, 2020 to November 30, 2020. The Company paid an amendment fee of $20,000. |  |
SNB facility, description | On June 14, 2021, the Company entered into the Second Amendment to the Loan and Security Agreement (“Second Amendment”). The purpose of the Second Amendment was to clarify the definition and calculation of Excess Cash Flow, and to confirm the extension of the due date for the payment of the Excess Cash Flow payment. For so long as the SNB term loan remains outstanding, if Excess Cash Flow (as defined) is a positive number for any fiscal year the Company shall pay to SNB an amount equal to the lesser of (i) twenty-five percent (25%) of the excess Cash flow for such fiscal year and (ii) the outstanding principal balance of the term loan. Such payment shall be made to SNB and applied to the outstanding principal balance of the term loan, on or prior to the close of the fiscal year immediately following such fiscal year. The amount of the Excess Cash Flow payment for the year ended December 31, 2020 was calculated to be $558,750. Per the terms of the Second Amendment, the Excess Cash Flow is payable in three instalments of $186,250 on each of June 15, 2021, June 30, 2021, and September 15, 2021. As of September 30, 2021, the Company paid this in full. Additionally, the Company paid an amendment fee of $10,000. |  |  |  | Under the terms of the SNB Facility, both the SNB revolving line of credit and the SNB term loan bear an interest rate equal to 30-day LIBOR (with a 1% floor) plus 2.5%. The average interest rate charged during the period ended September 30, 2021 was 3.5%. |  |
Amendment fee |  |  |  |  | $ 10,000 |  |
Interest expense |  |  | $ 126,000 | $ 125,000 | $ 376,000 | $ 378,000 |
Interest incurred on notes to third parties |  |  |  | 38,000 |  | 118,000 |
Amortization of debt discount |  |  |  | 0 |  | 7,000 |
Robert and Michael Taglich [Member] |  |  |  |  |  |  |
Notes Payable, Related Party Notes Payable and Finance Lease Obligations (Details) [Line Items] |  |  |  |  |  |  |
Loan facility, description |  |  |  |  | From 2016 through 2020, the Company entered into various subordinated notes payable and convertible subordinated notes payable with Michael and Robert Taglich. These notes resulted in proceeds to the Company totaling $6,550,000. In connection with these notes, Michael and Robert were issued a total of 355,082 shares of common stock and Taglich Brothers Inc. was issued promissory notes totaling $554,000 for placement agency fees. On January 1, 2021, the related party subordinated notes due to Michael and Robert Taglich and Taglich Brothers, Inc., were amended to include all accrued interest through December 31, 2020 in the principal balance of the notes. Per the terms of the SNB Facility, these notes remain subordinate to the SNB Facility and are due on July 1, 2023. Approximately $2,732,000 of the related party subordinated notes can be converted at the option of the holder into Common Stock of the Company at $0.93 per share, while the remaining $2,080,000 of the related party subordinated notes can be converted at the option of the holder into Common Stock of the Company at $1.50 per share. There are no principal payments due on these notes until such time. The note holders and the principal balance of the notes as amended on January 1, 2021 are shown below |  |
Three Installments [Member] |  |  |  |  |  |  |
Notes Payable, Related Party Notes Payable and Finance Lease Obligations (Details) [Line Items] |  |  |  |  |  |  |
Excess cash flow paid |  |  | 186,250 |  | $ 558,750 |  |
Loan Payable – Financed Asset [Member] |  |  |  |  |  |  |
Notes Payable, Related Party Notes Payable and Finance Lease Obligations (Details) [Line Items] |  |  |  |  |  |  |
Loan obligation |  |  | 41,000 |  | 41,000 |  | $ 48,000
Convertible Notes Payable – Third Parties [Member] |  |  |  |  |  |  |
Notes Payable, Related Party Notes Payable and Finance Lease Obligations (Details) [Line Items] |  |  |  |  |  |  |
Interest payable related parties |  |  | 0 |  | 0 |  | 0
SBA Loans [Member] |  |  |  |  |  |  |
Notes Payable, Related Party Notes Payable and Finance Lease Obligations (Details) [Line Items] |  |  |  |  |  |  |
Revolving credit loan term amount |  |  |  |  | $ 16,000,000 |  |
SNB Bank [Member] |  |  |  |  |  |  |
Notes Payable, Related Party Notes Payable and Finance Lease Obligations (Details) [Line Items] |  |  |  |  |  |  |
Loan facility, description |  |  |  |  | The terms of the SNB Facility require that, among other things, the Company maintain a specified Fixed Charge Coverage Ratio of 1.25 to 1.00 at the end of each Fiscal Quarter beginning with the Fiscal Quarter ending March 31, 2020. |  |
Principal amount |  |  | 17,874,000 |  | $ 17,874,000 |  | 21,207,000
Revolving credit loan debt to SNB |  |  |  |  | 13,463,000 |  | 15,649,000
Term loan amount |  |  |  |  | 4,411,000 |  | $ 5,558,000
Interest expense |  |  | $ 181,000 | $ 147,000 | $ 542,000 | $ 420,000 |

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