Fair Value	12 Months Ended
Dec. 31, 2022
Fair Value [Line Items]
Fair Value Disclosures [Text Block]	4. Fair Value The Company carries the cash surrender value of life insurance related to its deferred compensation arrangements at fair value. Under ASC 820, the fair value of all assets and liabilities is determined using a three-tier fair value hierarchy. The fair value hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three levels as follows: Level 1 – Inputs to the valuation methodology based on unadjusted quoted market prices in active markets that are accessible at the measurement date. Level 2 – Inputs to the valuation methodology that include quoted market prices that are not considered to be active or financial instruments for which all significant inputs are observable, either directly or indirectly. Level 3 – Inputs to the valuation methodology that are unobservable and significant to the fair value measurement. Based on this hierarchy, the Company determined the fair value of the cash surrender value of life insurance, a Level 2 based on observable inputs primarily from the counter party. The Company’s cash surrender value of life insurance had a carrying amount of $33,000 at December 31, 2022 and 2021, which was included in Other Assets in the Consolidated Balance Sheets. The carrying amounts of cash equivalents, receivables and accounts payable approximate fair value due to the short maturities of these items. The fair value of the Notes, using observable inputs, was $121,000 and at December 31, 2022 and 2021. The fair value of the Debentures, using observable inputs, was $88,000 at December 31, 2022 and 2021, respectively. The fair value of the Company’s remaining long-term debt including current portion approximates its carrying value of $3.7 million at December 31, 2022 and $3.1 million at December 31, 2021.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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