1. General (Policies)	9 Months Ended
Sep. 27, 2013
Policies
Revenue Recognition	*Revenue Recognition* Sales include revenues from system hardware and the related integrated software, database products and service contracts. The following methods are used to determine revenue recognition: Percentage of Completion. In arrangements that are longer in term and require significant production, modification or customization, revenue is recognized using the percentage-of-completion method. In applying this method, the Company utilizes cost-to-cost methodology whereby it estimates the percent complete by calculating the ratio of costs incurred (consisting of material, labor and subcontracting costs, as well as an allocation of indirect costs) for each contract to its total anticipated costs for that contract. This ratio is then utilized to determine the amount of gross profit earned based on the Company’s estimate of total gross profit at completion for each contract. The Company routinely reviews estimates related to percentage-of-completion contracts and adjusts for changes in the period the revisions are made. Billings on uncompleted percentage-of-completion contracts may be greater than or less than incurred costs and estimated earnings and are recorded as an asset or liability in the accompanying condensed consolidated balance sheets. In those arrangements where software is a significant component of the contract, the Company uses the percentage-of-completion method as described above. Completed Contract. Contract arrangements which typically require a relatively short period of time to complete the production, modification, and customization of products are accounted for using the completed contract method. Accordingly, revenue is recognized upon delivery of the completed product, provided persuasive evidence of an arrangement exists, title and risk of loss have transferred to the customer, the fee is fixed or determinable, and collection is reasonably assured. Multiple Element Arrangements. Some contracts include multiple elements. Significant deliverables in such arrangements commonly include various hardware components of the Company’s visual display systems, domes, show content and various service and maintenance elements. Revenue earned on elements such as products, services and maintenance contracts are allocated to each element based on the relative fair values of the elements. Relative fair values of elements are generally determined based on actual and estimated selling price. Delivery times of such contracts typically occur within a three to six-month time period. Other. Other revenue consists primarily of amounts earned under maintenance contracts that are generally sold as a single element. Revenue from product maintenance contracts, including separately priced extended warranty contracts, is deferred and recognized over the period of performance under the contract. Anticipated Losses. For contracts with anticipated losses at completion, a provision is recorded when the loss is probable. After an anticipated loss is recorded, subsequent revenues and cost of sales are recognized in equal, offsetting amounts as contract costs are incurred.
Stock-based Compensation	*Stock-Based Compensation* Compensation cost for all stock-based awards is measured at fair value on the date of grant and is recognized over the service period for awards expected to vest. Determining the fair value of share-based awards at the grant date requires judgment, including estimating the value of share-based awards that are expected to be forfeited. Actual results and future estimates may differ from the Company’s current estimates.
Net Income (loss) Per Common Share	*Net Income (Loss) Per Common Share* Basic net income (loss) per common share is computed based on the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per common share is computed based on the weighted-average number of common shares and dilutive common stock equivalents outstanding during the period. Stock options are considered to be common stock equivalents. When the Company incurs a loss, potentially dilutive common stock equivalents are excluded as their effect would be anti-dilutive, thereby decreasing the net loss per common share.
Liquidity	*Liquidity* As of September 27, 2013, the total stockholders’ deficit was $24,884 as compared to $24,644 as of December 31, 2012. While the Company believes existing sources of liquidity and expected results of operations will be adequate to fund its pension and operational obligations through at least September 30, 2014, it has stopped making payments due on its pension obligation, and is seeking, through a legal process described more fully in Note 4, to restructure its pension obligations in order to sustain operations for a longer term. As such, in January 2013, the Company initiated an application process for the distress termination of its pension plan in accordance with provisions of the Employee Retirement Income Security Act of 1974 (“ERISA”). If the distress termination is approved, the ERISA Title IV insurance fund, which is administered by the Pension Benefit Guaranty Corporation (“PBGC”), would take possession of the assets in the pension plan trust and pay future pension plan benefits. Through this process, the Company will seek to negotiate, with the PBGC, a settlement of its pension plan liabilities on terms that are feasible for the Company to continue in business as a going concern for the long term, which is consistent with the purposes of the provisions of ERISA. Because the Company has stopped making payments due on its pension obligation, a lien in favor of the PBGC has arisen against the assets of the Company. The lien secures aggregate unpaid contributions to the pension plan trust, with interest, which has accumulated to $2,129 as of October 15, 2013. The Company’s legal counsel has advised that the PBGC usually does not take enforcement action under its lien rights while it is still considering the application for the distress termination and the Company believes that the lien on its assets will not have a significant adverse effect on its business operations. Aided by improving sales backlog and business prospects, the Company believes improving results should produce sufficient funds to satisfy the increasing debt secured by the PBGC lien through at least September 30, 2014; however, it also believes payment of the debt, to the extent that it threatens the ability to sustain operations for the long term, will not be in the best interest of the Company or its creditors, including the pension plan and the PBGC. The Company believes the improving operating results and the distress termination process will enable the management of its short-term pension debt and the continuity of operations through at least September 30, 2014. There can be no assurance that the PBGC will not take additional action to enforce the lien and that the Company will be successful in these efforts. The condensed consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty.

1. General (Policies)

9 Months Ended

Sep. 27, 2013

Revenue Recognition

Sales include revenues from system hardware and the related integrated software, database products and service contracts. The following methods are used to determine revenue recognition:

Percentage of Completion. In arrangements that are longer in term and require significant production, modification or customization, revenue is recognized using the percentage-of-completion method. In applying this method, the Company utilizes cost-to-cost methodology whereby it estimates the percent complete by calculating the ratio of costs incurred (consisting of material, labor and subcontracting costs, as well as an allocation of indirect costs) for each contract to its total anticipated costs for that contract. This ratio is then utilized to determine the amount of gross profit earned based on the Company’s estimate of total gross profit at completion for each contract. The Company routinely reviews estimates related to percentage-of-completion contracts and adjusts for changes in the period the revisions are made. Billings on uncompleted percentage-of-completion contracts may be greater than or less than incurred costs and estimated earnings and are recorded as an asset or liability in the accompanying condensed consolidated balance sheets.

In those arrangements where software is a significant component of the contract, the Company uses the percentage-of-completion method as described above.

Completed Contract. Contract arrangements which typically require a relatively short period of time to complete the production, modification, and customization of products are accounted for using the completed contract method. Accordingly, revenue is recognized upon delivery of the completed product, provided persuasive evidence of an arrangement exists, title and risk of loss have transferred to the customer, the fee is fixed or determinable, and collection is reasonably assured.

Multiple Element Arrangements. Some contracts include multiple elements. Significant deliverables in such arrangements commonly include various hardware components of the Company’s visual display systems, domes, show content and various service and maintenance elements. Revenue earned on elements such as products, services and maintenance contracts are allocated to each element based on the relative fair values of the elements. Relative fair values of elements are generally determined based on actual and estimated selling price. Delivery times of such contracts typically occur within a three to six-month time period.

Other. Other revenue consists primarily of amounts earned under maintenance contracts that are generally sold as a single element. Revenue from product maintenance contracts, including separately priced extended warranty contracts, is deferred and recognized over the period of performance under the contract.

Anticipated Losses. For contracts with anticipated losses at completion, a provision is recorded when the loss is probable. After an anticipated loss is recorded, subsequent revenues and cost of sales are recognized in equal, offsetting amounts as contract costs are incurred.

Stock-based Compensation

Stock-Based Compensation

Compensation cost for all stock-based awards is measured at fair value on the date of grant and is recognized over the service period for awards expected to vest. Determining the fair value of share-based awards at the grant date requires judgment, including estimating the value of share-based awards that are expected to be forfeited. Actual results and future estimates may differ from the Company’s current estimates.

Net Income (loss) Per Common Share

Net Income (Loss) Per Common Share

Basic net income (loss) per common share is computed based on the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per common share is computed based on the weighted-average number of common shares and dilutive common stock equivalents outstanding during the period. Stock options are considered to be common stock equivalents. When the Company incurs a loss, potentially dilutive common stock equivalents are excluded as their effect would be anti-dilutive, thereby decreasing the net loss per common share.

Liquidity

Liquidity

As of September 27, 2013, the total stockholders’ deficit was $24,884 as compared to $24,644 as of December 31, 2012. While the Company believes existing sources of liquidity and expected results of operations will be adequate to fund its pension and operational obligations through at least September 30, 2014, it has stopped making payments due on its pension obligation, and is seeking, through a legal process described more fully in Note 4, to restructure its pension obligations in order to sustain operations for a longer term. As such, in January 2013, the Company initiated an application process for the distress termination of its pension plan in accordance with provisions of the Employee Retirement Income Security Act of 1974 (“ERISA”). If the distress termination is approved, the ERISA Title IV insurance fund, which is administered by the Pension Benefit Guaranty Corporation (“PBGC”), would take possession of the assets in the pension plan trust and pay future pension plan benefits. Through this process, the Company will seek to negotiate, with the PBGC, a settlement of its pension plan liabilities on terms that are feasible for the Company to continue in business as a going concern for the long term, which is consistent with the purposes of the provisions of ERISA. Because the Company has stopped making payments due on its pension obligation, a lien in favor of the PBGC has arisen against the assets of the Company. The lien secures aggregate unpaid contributions to the pension plan trust, with interest, which has accumulated to $2,129 as of October 15, 2013. The Company’s legal counsel has advised that the PBGC usually does not take enforcement action under its lien rights while it is still considering the application for the distress termination and the Company believes that the lien on its assets will not have a significant adverse effect on its business operations. Aided by improving sales backlog and business prospects, the Company believes improving results should produce sufficient funds to satisfy the increasing debt secured by the PBGC lien through at least September 30, 2014; however, it also believes payment of the debt, to the extent that it threatens the ability to sustain operations for the long term, will not be in the best interest of the Company or its creditors, including the pension plan and the PBGC. The Company believes the improving operating results and the distress termination process will enable the management of its short-term pension debt and the continuity of operations through at least September 30, 2014. There can be no assurance that the PBGC will not take additional action to enforce the lien and that the Company will be successful in these efforts. The condensed consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty.

- Definition

Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements.

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- Definition

Disclosure of accounting policy for reporting when there is a substantial doubt about an entity's ability to continue as a going concern for a reasonable period of time (generally a year from the balance sheet date). Disclose: (a) pertinent conditions and events giving rise to the assessment of substantial doubt about the entity's ability to continue as a going concern for a reasonable period of time, (b) the possible effects of such conditions and events, (c) management's evaluation of the significance of those conditions and events and any mitigating factors, (d) possible discontinuance of operations, (e) management's plans (including relevant prospective financial information), and (f) information about the recoverability or classification of recorded asset amounts or the amounts or classification of liabilities. If management's plans alleviate the substantial doubt about the entity's ability to continue as a going concern, disclosure of the principal conditions and events that initially raised the substantial doubt about the entity's ability to continue as a going concern would be expected to be considered. Disclose whether operations for the current or prior years generated sufficient cash to cover current obligations, whether waivers were obtained from creditors relating to the company's default under the provisions of debt agreements and possible effects of such conditions and events, such as: whether there is a possible need to obtain additional financing (debt or equity) or to liquidate certain holdings to offset future cash flow deficiencies. Disclose appropriate parent company information when parent is dependent upon remittances from subsidiaries to satisfy its obligations.

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- Definition

Disclosure of accounting policy for revenue recognition. If the entity has different policies for different types of revenue transactions, the policy for each material type of transaction is generally disclosed. If a sales transaction has multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets) the disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction.

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