Summary of Significant Accounting Policies (Policies)	12 Months Ended
Dec. 29, 2013
Accounting Policies [Abstract]
Fiscal Year	Fiscal Year On August 4, 2011, the Company's Board of Directors approved a change in the Company's fiscal year-end from the Sunday nearest to June 30 of each calendar year to the Sunday nearest to December 31, with the change to a calendar year reporting cycle beginning January 2, 2012. The intent of the change was to align the reporting of financial results more closely with peers and to better align the Company's business cycle with suppliers and customers. Fiscal years 2013 and 2012 refer to the twelve-month periods ended December 29, 2013, and December 30, 2012, respectively, and each fiscal year contained 52 weeks. Transition period 2011 refers to the six-month transition period ended January 1, 2012, and contained 26 weeks. Fiscal year 2011 refers to the twelve-month period ended July 3, 2011, and contained 53 weeks. Supplemental financial information in these financial statements with respect to the twelve months ended January 1, 2012, and the six months ended January 2, 2011, is unaudited.
Use of Estimates	Use of Estimates The preparation of financial statements in accordance with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.
Accounts Receivables	Accounts Receivable Accounts receivable represent amounts due from customers in the ordinary course of business. The Company is subject to losses from uncollectable receivables in excess of its allowances. The Company maintains allowances for doubtful accounts for estimated losses from customers’ inability to make required payments. In order to estimate the appropriate level of these allowances, the Company analyzes historical bad debts, customer concentrations, current customer creditworthiness, current economic trends, and changes in customer payment patterns. If the financial conditions of the Company’s customers were to deteriorate and impair their ability to make payments, additional allowances may be required in future periods.
Inventories	Inventories The Company’s inventories are stated at the lower of cost or market. Cost is determined by the first-in, first-out (“FIFO”) method, including material, labor and factory overhead. Existing inventory on hand may exceed future demand either because the product is obsolete, or the amount on hand is more than can be used to meet future needs. The Company identifies potentially obsolete and excess inventory by evaluating overall inventory levels in relation to past and anticipated usage levels. In assessing the ultimate realization of inventories, the Company is required to make judgments as to future demand requirements and compare those with the current or committed inventory levels. If future demand requirements are less favorable than those projected by management, additional inventory write-downs may be required.
Reserves for Litigation and Environmental Issues	Reserves for Litigation and Environmental Issues The Company periodically records the estimated impacts of various conditions, situations, or circumstances involving uncertain outcomes. The accounting for such events is prescribed under ASC Topic 450, Contingencies. The Company does not record gain contingencies under any circumstances. For loss contingencies, the loss must be accrued if information is available that indicates it is probable that the loss has been incurred, given the likelihood of uncertain events, and if the amount of the loss can be reasonably estimated. The accrual of a contingency involves considerable judgment on the part of management. The Company uses its internal expertise and outside experts, as necessary, to help estimate the probability that a loss has been incurred and the amount or range of the loss.
Income Taxes	Income Taxes The Company uses the liability method to account for income taxes. The preparation of consolidated financial statements involves estimating the Company’s current tax exposure together with assessing temporary differences resulting from differing treatment of items for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which are included in the consolidated balance sheets. An assessment of the recoverability of deferred tax assets is made, and a valuation allowance is established if necessary based upon this assessment.
Pension Benefits	Pension Benefits The valuation of the Company’s pension plan requires the use of assumptions and estimates to develop actuarial valuations of pension expense, pension assets, and pension liabilities. These assumptions include discount rates, investment returns, and mortality rates. Changes in these assumptions could potentially have a material impact on the Company’s pension expense and related funding requirements.
Restricted Cash	Restricted Cash At December 29, 2013, and December 30, 2012, the Company had $0.3 million of restricted cash related to minimum balance requirements associated with procurement of certain raw materials and supplies.
Revenue Recognition	Revenue Recognition The Company’s policy is to recognize revenue when the earnings process is complete. The criteria used in making this determination are persuasive evidence that an arrangement exists, delivery has occurred, the sales price is fixed or determinable, and collectability is reasonably assured. Sales are recorded net of returns and allowances, which are estimated using historical data, at the time of sale. Terms of shipment are free on board shipping point, and payment is not contingent upon resale or any other matter other than passage of time. As a result, title to goods passes upon shipment. Amounts billed to customers for shipping costs are reflected in net sales; shipping costs are reflected in cost of sales.
Property, Plant and Equipment	Property, Plant and Equipment Additions and improvements are capitalized at cost, whereas expenditures for maintenance and repairs are charged to expense as incurred. Depreciation is provided over the estimated useful lives of the respective assets principally on the straight-line method (machinery and equipment normally five to ten years; buildings and leasehold improvements over the shorter of the lease term or the economic life, estimated at ten to forty years).
Goodwill	Goodwill In accordance with ASC Topic 350, Goodwill and Other Intangible Assets, the Company reviews the carrying value of goodwill at least annually and more frequently if indicators of potential impairment arise. Goodwill represents the excess of the amount paid to acquire the Company over the estimated fair value of the net tangible and intangible assets acquired as of the acquisition date. Conditions that would trigger an impairment assessment include, but are not limited to, a significant adverse change in legal factors or business climate that could affect the value of an asset. The Company performed the required annual impairment tests for fiscal years 2013 and 2012, transition period 2011, and fiscal year 2011, and found no impairment of goodwill. There can be no assurance that future goodwill impairment tests will not result in a charge to earnings.
Intangible Assets	Intangible Assets Additions to intangible assets are capitalized at fair market value and the carrying value of indefinite-lived intangibles is reviewed for impairment at least annually. Intangible assets are included in other assets in the consolidated balance sheets, and are amortized over the estimated useful lives of the respective assets, principally on the straight-line method. In fiscal 2009 and fiscal 2010, the Company acquired several patents related to the design and manufacture of digital DC drives for material handling and mining applications. The cost of the patents, $533 as of December 29, 2013, and December 30, 2012, was capitalized and is included in other assets in the consolidated balance sheets. The estimated useful life of the patents is 10 years. Accumulated amortization of the patents as of December 29, 2013, and December 30, 2012, was $291 and $238, respectively, resulting in a net carrying value as of those dates of $242 and $295, respectively.
Share-based Compensation	Stock-Based Compensation The Company records stock-based compensation expenses in accordance with ASC Topic 718, Stock Compensation (formerly SFAS No. 123R, Accounting for Stock-Based Compensation). Compensation expense related to all stock-based awards for fiscal years 2013 and 2012, transition period 2011, and for fiscal year 2011 is included in selling, general and administrative expense in the consolidated statements of operations. No tax benefit was recorded on the stock compensation expense for fiscal years 2013 and 2012, transition period 2011, or fiscal year 2011 due to deferred tax valuation allowances recorded by the Company in those years.
Research and Development	Research and Development Expenditures for research and development are charged to expense as incurred and totaled $3,246 for fiscal 2013, $3,834 for fiscal 2012, $2,103 for the six-month transition period 2011, and $4,360 for fiscal year 2011.
Advertising	Advertising Expenditures for advertising are charged to expense as incurred and totaled $58 for fiscal year 2013, $88 for fiscal year 2012, $26 for the six-month transition period 2011, and $74 for the fiscal year 2011.
Foreign Currency Translation	Foreign Currency Translation The accounts of the Company’s foreign entities are measured using local currency as the functional currency. Assets and liabilities are translated to the reporting currency (U.S. Dollar) at the exchange rate in effect at year-end. Revenues and expenses are translated at the rates of exchange prevailing during the year. Unrealized translation gains and losses arising from differences in exchange rates from period to period are included as a component of accumulated other comprehensive gain or loss in stockholders’ equity.
Earnings Per Share	Earnings Per Share In accordance with ASC Topic 260, Earnings Per Share, basic earnings per share is computed using the weighted average number of common shares outstanding during the period. Diluted earnings per common share incorporate the incremental shares issuable upon the assumed vesting of restricted stock and the exercise of stock options as if all vesting and exercises had occurred at the beginning of the fiscal year.
Recent Accounting Pronouncements	Recent Accounting Pronouncements On January 2, 2012, the Company adopted Financial Accounting Standards Board Accounting Standards Update ("ASU") 2011-05, an amendment to Accounting Standards Codification 220, Comprehensive Income. ASU 2011-05 introduces a new statement, the Consolidated Statement of Comprehensive Income, which begins with net earnings and adds or deducts other recognized changes in assets and liabilities that are not included in net earnings, but are reported directly to equity. For example, unrealized changes in currency translation adjustments are included in the measure of comprehensive income but are excluded from net income. The amendment affects only the display of those components of equity categorized as other comprehensive income and does not change existing recognition and measurement requirements that determine net earnings. In February 2010, the SEC approved a work plan regarding convergence of US GAAP with International Financial Reporting Standards (“IFRS”) and the timeline for the preparation of financial statements by U.S. registrants under IFRS. IFRS are standards and interpretations adopted by the International Accounting Standards Board. Under the proposed roadmap, the Company would be required to prepare financial statements in accordance with IFRS no earlier than in fiscal 2016. The Company is currently assessing the potential impact of IFRS on its financial statements and will continue to follow the proposed roadmap for future developments.

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 29, 2013

On August 4, 2011, the Company's Board of Directors approved a change in the Company's fiscal year-end from the Sunday nearest to June 30 of each calendar year to the Sunday nearest to December 31, with the change to a calendar year reporting cycle beginning January 2, 2012. The intent of the change was to align the reporting of financial results more closely with peers and to better align the Company's business cycle with suppliers and customers. Fiscal years 2013 and 2012 refer to the twelve-month periods ended December 29, 2013, and December 30, 2012, respectively, and each fiscal year contained 52 weeks. Transition period 2011 refers to the six-month transition period ended January 1, 2012, and contained 26 weeks. Fiscal year 2011 refers to the twelve-month period ended July 3, 2011, and contained 53 weeks. Supplemental financial information in these financial statements with respect to the twelve months ended January 1, 2012, and the six months ended January 2, 2011, is unaudited.

Use of Estimates

The preparation of financial statements in accordance with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.

Accounts Receivables

Accounts Receivable

Accounts receivable represent amounts due from customers in the ordinary course of business. The Company is subject to losses from uncollectable receivables in excess of its allowances. The Company maintains allowances for doubtful accounts for estimated losses from customers’ inability to make required payments. In order to estimate the appropriate level of these allowances, the Company analyzes historical bad debts, customer concentrations, current customer creditworthiness, current economic trends, and changes in customer payment patterns. If the financial conditions of the Company’s customers were to deteriorate and impair their ability to make payments, additional allowances may be required in future periods.

Inventories

The Company’s inventories are stated at the lower of cost or market. Cost is determined by the first-in, first-out (“FIFO”) method, including material, labor and factory overhead. Existing inventory on hand may exceed future demand either because the product is obsolete, or the amount on hand is more than can be used to meet future needs. The Company identifies potentially obsolete and excess inventory by evaluating overall inventory levels in relation to past and anticipated usage levels. In assessing the ultimate realization of inventories, the Company is required to make judgments as to future demand requirements and compare those with the current or committed inventory levels. If future demand requirements are less favorable than those projected by management, additional inventory write-downs may be required.

Reserves for Litigation and Environmental Issues

The Company periodically records the estimated impacts of various conditions, situations, or circumstances involving uncertain outcomes. The accounting for such events is prescribed under ASC Topic 450, Contingencies. The Company does not record gain contingencies under any circumstances. For loss contingencies, the loss must be accrued if information is available that indicates it is probable that the loss has been incurred, given the likelihood of uncertain events, and if the amount of the loss can be reasonably estimated.

The accrual of a contingency involves considerable judgment on the part of management. The Company uses its internal expertise and outside experts, as necessary, to help estimate the probability that a loss has been incurred and the amount or range of the loss.

Income Taxes

The Company uses the liability method to account for income taxes. The preparation of consolidated financial statements involves estimating the Company’s current tax exposure together with assessing temporary differences resulting from differing treatment of items for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which are included in the consolidated balance sheets. An assessment of the recoverability of deferred tax assets is made, and a valuation allowance is established if necessary based upon this assessment.

Pension Benefits

The valuation of the Company’s pension plan requires the use of assumptions and estimates to develop actuarial valuations of pension expense, pension assets, and pension liabilities. These assumptions include discount rates, investment returns, and mortality rates. Changes in these assumptions could potentially have a material impact on the Company’s pension expense and related funding requirements.

Restricted Cash

At December 29, 2013, and December 30, 2012, the Company had $0.3 million of restricted cash related to minimum balance requirements associated with procurement of certain raw materials and supplies.

Revenue Recognition

The Company’s policy is to recognize revenue when the earnings process is complete. The criteria used in making this determination are persuasive evidence that an arrangement exists, delivery has occurred, the sales price is fixed or determinable, and collectability is reasonably assured. Sales are recorded net of returns and allowances, which are estimated using historical data, at the time of sale.

Terms of shipment are free on board shipping point, and payment is not contingent upon resale or any other matter other than passage of time. As a result, title to goods passes upon shipment. Amounts billed to customers for shipping costs are reflected in net sales; shipping costs are reflected in cost of sales.

Property, Plant and Equipment

Additions and improvements are capitalized at cost, whereas expenditures for maintenance and repairs are charged to expense as incurred. Depreciation is provided over the estimated useful lives of the respective assets principally on the straight-line method (machinery and equipment normally five to ten years; buildings and leasehold improvements over the shorter of the lease term or the economic life, estimated at ten to forty years).

Goodwill

In accordance with ASC Topic 350, Goodwill and Other Intangible Assets, the Company reviews the carrying value of goodwill at least annually and more frequently if indicators of potential impairment arise. Goodwill represents the excess of the amount paid to acquire the Company over the estimated fair value of the net tangible and intangible assets acquired as of the acquisition date. Conditions that would trigger an impairment assessment include, but are not limited to, a significant adverse change in legal factors or business climate that could affect the value of an asset.

The Company performed the required annual impairment tests for fiscal years 2013 and 2012, transition period 2011, and fiscal year 2011, and found no impairment of goodwill. There can be no assurance that future goodwill impairment tests will not result in a charge to earnings.

Intangible Assets

Additions to intangible assets are capitalized at fair market value and the carrying value of indefinite-lived intangibles is reviewed for impairment at least annually. Intangible assets are included in other assets in the consolidated balance sheets, and are amortized over the estimated useful lives of the respective assets, principally on the straight-line method. In fiscal 2009 and fiscal 2010, the Company acquired several patents related to the design and manufacture of digital DC drives for material handling and mining applications. The cost of the patents, $533 as of December 29, 2013, and December 30, 2012, was capitalized and is included in other assets in the consolidated balance sheets. The estimated useful life of the patents is 10 years. Accumulated amortization of the patents as of December 29, 2013, and December 30, 2012, was $291 and $238, respectively, resulting in a net carrying value as of those dates of $242 and $295, respectively.

Share-based Compensation

Stock-Based Compensation

The Company records stock-based compensation expenses in accordance with ASC Topic 718, Stock Compensation (formerly SFAS No. 123R, Accounting for Stock-Based Compensation). Compensation expense related to all stock-based awards for fiscal years 2013 and 2012, transition period 2011, and for fiscal year 2011 is included in selling, general and administrative expense in the consolidated statements of operations. No tax benefit was recorded on the stock compensation expense for fiscal years 2013 and 2012, transition period 2011, or fiscal year 2011 due to deferred tax valuation allowances recorded by the Company in those years.

Research and Development

Expenditures for research and development are charged to expense as incurred and totaled $3,246 for fiscal 2013, $3,834 for fiscal 2012, $2,103 for the six-month transition period 2011, and $4,360 for fiscal year 2011.

Advertising

Expenditures for advertising are charged to expense as incurred and totaled $58 for fiscal year 2013, $88 for fiscal year 2012, $26 for the six-month transition period 2011, and $74 for the fiscal year 2011.

Foreign Currency Translation

The accounts of the Company’s foreign entities are measured using local currency as the functional currency. Assets and liabilities are translated to the reporting currency (U.S. Dollar) at the exchange rate in effect at year-end. Revenues and expenses are translated at the rates of exchange prevailing during the year. Unrealized translation gains and losses arising from differences in exchange rates from period to period are included as a component of accumulated other comprehensive gain or loss in stockholders’ equity.

Earnings Per Share

In accordance with ASC Topic 260, Earnings Per Share, basic earnings per share is computed using the weighted average number of common shares outstanding during the period. Diluted earnings per common share incorporate the incremental shares issuable upon the assumed vesting of restricted stock and the exercise of stock options as if all vesting and exercises had occurred at the beginning of the fiscal year.

Recent Accounting Pronouncements

On January 2, 2012, the Company adopted Financial Accounting Standards Board Accounting Standards Update ("ASU") 2011-05, an amendment to Accounting Standards Codification 220, Comprehensive Income. ASU 2011-05 introduces a new statement, the Consolidated Statement of Comprehensive Income, which begins with net earnings and adds or deducts other recognized changes in assets and liabilities that are not included in net earnings, but are reported directly to equity. For example, unrealized changes in currency translation adjustments are included in the measure of comprehensive income but are excluded from net income. The amendment affects only the display of those components of equity categorized as other comprehensive income and does not change existing recognition and measurement requirements that determine net earnings.

In February 2010, the SEC approved a work plan regarding convergence of US GAAP with International Financial Reporting Standards (“IFRS”) and the timeline for the preparation of financial statements by U.S. registrants under IFRS. IFRS are standards and interpretations adopted by the International Accounting Standards Board. Under the proposed roadmap, the Company would be required to prepare financial statements in accordance with IFRS no earlier than in fiscal 2016. The Company is currently assessing the potential impact of IFRS on its financial statements and will continue to follow the proposed roadmap for future developments.