Liquidity and Going Concern	12 Months Ended
Dec. 31, 2022
Liquidity and Going Concern [Line Items]
Substantial Doubt about Going Concern [Text Block]	2. Liquidity and Going Concern A fundamental principle of the preparation of financial statements in accordance with GAAP is the assumption that an entity will continue in existence as a going concern, which contemplates continuity of operations and the realization of assets and settlement of liabilities occurring in the ordinary course of business. This principle is applicable to all entities except for entities in liquidation or entities for which liquidation appears imminent. In accordance with this requirement, the Company has prepared its accompanying Consolidated Financial Statements assuming the Company will continue as a going concern. The Company has incurred recurring operating losses and continues to have a working capital deficiency. The Company recorded income of $323,000 in the year ended December 31, 2022, which included the gain on forgiveness of the PPP loan of $824,000, and had a working capital deficiency of $9.3 million as of December 31, 2022. As of December 31, 2021, the Company had a working capital deficiency of $9.8 million. The Company is dependent on future operating performance in order to generate sufficient cash flows in order to continue to run its businesses. Future operating performance is dependent on general economic conditions, as well as financial, competitive and other factors beyond our control, including the impact of the current economic environment, the spread of major epidemics (including coronavirus) and other related uncertainties such as government-imposed travel restrictions, interruptions to supply chains and extended shut down of businesses. In order to more effectively manage its cash resources, the Company had, from time to time, increased the timetable of its payment of some of its payables, which delayed certain product deliveries from our vendors, which in turn delayed certain deliveries to our customers. Our Consolidated Financial Statements were prepared assuming we will continue as a going concern. Our continuing operating losses and uncertainty regarding our ability to make the required minimum funding contributions to the defined benefit pension plan and the past due principal and payments on our outstanding 8¼% Limited convertible senior subordinated notes due 2012 (the “Notes”) and 9½% Subordinated debentures due 2012 (the “Debentures”) raise substantial doubt about our ability to continue as a going concern. In addition, if we are unable to (i) obtain additional liquidity for working capital, (ii) make the required minimum funding contributions to the defined benefit pension plan, (iii) make the required principal and interest payments on the Notes and the Debentures and/or (iv) repay our obligations under our Credit Agreement (hereinafter defined) with Unilumin, there would be a significant adverse impact on our financial position and operating results. The Company continually evaluates the need and availability of long-term capital in order to meet its cash requirements and fund potential new opportunities.

Liquidity and Going Concern

12 Months Ended

Dec. 31, 2022

Liquidity and Going Concern [Line Items]

Substantial Doubt about Going Concern [Text Block]

2. Liquidity and Going Concern

A fundamental principle of the preparation of financial statements in accordance with GAAP is the assumption that an entity will continue in existence as a going concern, which contemplates continuity of operations and the realization of assets and settlement of liabilities occurring in the ordinary course of business. This principle is applicable to all entities except for entities in liquidation or entities for which liquidation appears imminent. In accordance with this requirement, the Company has prepared its accompanying Consolidated Financial Statements assuming the Company will continue as a going concern.

The Company has incurred recurring operating losses and continues to have a working capital deficiency. The Company recorded income of $323,000 in the year ended December 31, 2022, which included the gain on forgiveness of the PPP loan of $824,000, and had a working capital deficiency of $9.3 million as of December 31, 2022. As of December 31, 2021, the Company had a working capital deficiency of $9.8 million.

The Company is dependent on future operating performance in order to generate sufficient cash flows in order to continue to run its businesses. Future operating performance is dependent on general economic conditions, as well as financial, competitive and other factors beyond our control, including the impact of the current economic environment, the spread of major epidemics (including coronavirus) and other related uncertainties such as government-imposed travel restrictions, interruptions to supply chains and extended shut down of businesses. In order to more effectively manage its cash resources, the Company had, from time to time, increased the timetable of its payment of some of its payables, which delayed certain product deliveries from our vendors, which in turn delayed certain deliveries to our customers.

Our Consolidated Financial Statements were prepared assuming we will continue as a going concern. Our continuing operating losses and uncertainty regarding our ability to make the required minimum funding contributions to the defined benefit pension plan and the past due principal and payments on our outstanding 8¼% Limited convertible senior subordinated notes due 2012 (the “Notes”) and 9½% Subordinated debentures due 2012 (the “Debentures”) raise substantial doubt about our ability to continue as a going concern. In addition, if we are unable to (i) obtain additional liquidity for working capital, (ii) make the required minimum funding contributions to the defined benefit pension plan, (iii) make the required principal and interest payments on the Notes and the Debentures and/or (iv) repay our obligations under our Credit Agreement (hereinafter defined) with Unilumin, there would be a significant adverse impact on our financial position and operating results. The Company continually evaluates the need and availability of long-term capital in order to meet its cash requirements and fund potential new opportunities.