Notes and lines of credit consist of the following: (Details) - USD ($) $ in Thousands				9 Months Ended
		May 01, 2023	Jan. 28, 2022	Sep. 30, 2023	Dec. 31, 2022	Jan. 26, 2022
Libertyville Bank and Trust [Member]
Line of Credit Facility [Line Items]
Rate	[1]			9.50%
Total Borrowing Capacity	[1]			$ 30
Outstanding Borrowed Balance	[1]
Libertyville Bank and Trust [Member] | Prime Rate [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate				1.00%
Libertyville Bank and Trust One [Member]
Line of Credit Facility [Line Items]
Rate	[2]			9.50%
Total Borrowing Capacity	[2]			$ 500
Outstanding Borrowed Balance	[2]
Line of Credit Facility, Expiration Date				Dec. 22, 2023
Libertyville Bank and Trust One [Member] | Prime Rate [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate				1.00%
Strandler, LLC [Member]
Line of Credit Facility [Line Items]
Rate	[3]			9.25%
Total Borrowing Capacity	[3]			$ 1,000	1,000
Outstanding Borrowed Balance	[3]			$ 1,000	1,000
Line of Credit Facility, Expiration Date				Mar. 31, 2024
Strandler, LLC [Member] | Prime Rate [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate				0.75%
Beachcorp, LLC One [Member]
Line of Credit Facility [Line Items]
Rate	[4]			9.25%
Total Borrowing Capacity	[4]			$ 3,229	4,392
Outstanding Borrowed Balance	[4]			$ 2,338	4,282
Beachcorp, LLC Two [Member]
Line of Credit Facility [Line Items]
Rate	[5]			9.25%
Total Borrowing Capacity	[5]			$ 4,000	4,000
Outstanding Borrowed Balance	[5]			$ 4,000	3,000
Beachcorp, LLC Three [Member]
Line of Credit Facility [Line Items]
Rate	[6]			9.25%
Total Borrowing Capacity	[6]
Outstanding Borrowed Balance	[6]
Revolving Credit Facility [Member] | Business Loan Agreement [Member] | Beachcorp, LLC [Member]
Line of Credit Facility [Line Items]
Total Borrowing Capacity			$ 8,000			$ 6,000
Line of Credit Facility, Expiration Date			Mar. 31, 2024
Revolving Credit Facility [Member] | Prime Rate [Member] | Business Loan Agreement [Member] | Beachcorp, LLC [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate			0.75%
Inventory Facility [Member] | Business Loan Agreement [Member] | Beachcorp, LLC [Member]
Line of Credit Facility [Line Items]
Total Borrowing Capacity			$ 4,000
Line of Credit Facility, Expiration Date			Mar. 31, 2024
Line of Credit Percentage of Eligible inventory			50.00%
Inventory Facility [Member] | Prime Rate [Member] | Business Loan Agreement [Member] | Beachcorp, LLC [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate			0.75%
TI Promissory Note [Member] | Beachcorp, LLC [Member]
Line of Credit Facility [Line Items]
Total Borrowing Capacity		$ 1,750
Line of Credit Facility, Expiration Date		Sep. 30, 2023
TI Promissory Note [Member] | Prime Rate [Member] | Beachcorp, LLC [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.75%

[1] Since July 2014, we have maintained a bank-issued letter of credit for up to $30 in borrowings, with interest at the prime rate plus 1%, to support our obligations under our Romeoville, Illinois facility lease agreement. No borrowings have been incurred under this promissory note. It is our intention to renew this note annually. Because there were no amounts outstanding on the note at any time during 2023 or 2022, we have recorded no related liability on our balance sheet.

[2] The Company maintains a credit agreement with Libertyville to support our obligations under our newly leased manufacturing and warehouse space in Bolingbrook, Illinois. Interest on drawn balances will be at the prime rate plus 1%. This credit agreement has a maturity of December 22, 2023. We expect to renew this agreement annually, as the lease requires. This credit agreement is secured by all the unencumbered assets of the Company, and has superior collateral rights to those credit facilities with Beachcorp, LLC and Strandler, LLC.

[3] On January 28, 2022 the Company entered into an additional Business Loan Agreement (the “New Term Loan Agreement”) with Strandler, LLC, which effectively transferred or assigned the previously existing Term Loan to Strandler, LLC from Beachcorp, LLC. Interest on the New Term Loan is at the prime rate plus 0.75%, and it matures on March 31, 2024. Strandler, LLC is also an affiliate of Bradford T. Whitmore.

[4] On January 28, 2022 the Company entered into an Amended and Restated Business Loan Agreement (the “A&R Loan Agreement”), which amends and restates the Master Agreement between the Company and Beachcorp, LLC, and a new promissory note in order to evidence the A/R Revolver facility, including an amendment to expand the limit on the A/R Revolver Facility from $6,000 to $8,000, reduce the interest rate to the prime rate plus 0.75%, and extend the maturity of the A/R Revolver Facility to March 31, 2024.

[5] On January 28, 2022 the Company entered into the A&R Loan Agreement and a new revolving loan agreement (“Inventory Facility”) with Beachcorp, LLC, and a new promissory note in order to evidence the Inventory Facility. The maximum borrowing amount under the Inventory Facility is $4,000, with a borrowing base consisting of up to 50% of the value of qualified inventory of the Company. The interest rate for the Inventory Revolver is at the prime rate plus 0.75%, and it matures on March 31, 2024.

[6] On May 1, 2023 the Company entered into a non-revolving promissory note (“TI Promissory Note”) with Beachcorp, LLC. The maximum borrowing amount under the TI Promissory Note is $1,750. The interest rate for the TI Promissory Note is at the prime rate plus 0.75%, and it matures on September 30, 2023. This loan is for work being done at the Bolingbrook facility which is expected to be reimbursed from the landlord as part of the lease agreement. On July 21, 2023, the TI Promissory Note and accrued interest was repaid in full after reimbursement from the landlord for approved tenant improvements.