SMTC (SMTX) 10-Q 5 Nov 20 2020 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 27, 2020	Nov. 05, 2020
Cover [Abstract]
Document Type	10-Q
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Central Index Key	0001108320
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Sep. 27, 2020
Document Fiscal Year Focus	2020
Current Fiscal Year End Date	--12-27
Entity File Number	000-31051
Entity Registrant Name	SMTC CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	98-0197680
Entity Address, Address Line One	7050 WOODBINE AVENUE
Entity Address, State or Province	ON
Entity Address, City or Town	MARKHAM
Entity Address, Country	CA
Entity Address, Postal Zip Code	L3R 4G8
City Area Code	905
Local Phone Number	479-1810
Title of 12(b) Security	Common Stock
Trading Symbol	SMTX
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		28,214,800

Interim Consolidated Balance Sh

Interim Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 27, 2020	Dec. 29, 2019
Current assets:
Cash	$ 169	$ 1,368
Accounts receivable — net (note 3)	73,406	69,919
Unbilled contract assets (note 3)	42,736	26,271
Inventories (note 3)	51,537	47,826
Prepaid expenses and other assets	6,564	7,044
Derivative assets (note 9)	720
Income taxes receivable	160
Total current assets	175,292	152,428
Property, plant and equipment — net (note 3)	23,397	25,310
Operating lease right of use assets — net	5,897	3,330
Goodwill (note 3)	18,165	18,165
Intangible assets — net (note 3)	10,029	12,747
Deferred income taxes — net	555	540
Deferred financing costs — net	742	859
Total assets	234,077	213,379
Current liabilities:
Revolving credit facility (note 4)	34,356	34,701
Accounts payable	77,979	74,126
Accrued liabilities (note 3)	23,125	11,164
Warrant liability (note 4)	1,745	1,730
Restructuring liability (note 10)	364	1,597
Income taxes payable	254	157
Current portion of long-term debt (note 4)	2,188	1,250
Current portion of operating lease obligations	1,452	1,128
Current portion of finance lease obligations	1,818	1,226
Total current liabilities	143,281	127,079
Long-term debt (note 4)	32,513	33,750
Operating lease obligations	5,042	2,615
Finance lease obligations	8,696	8,838
Total liabilities	189,532	172,282
Shareholders’ equity:
Capital stock (note 5)	508	508
Additional paid-in capital	293,864	293,389
Deficit	(249,827)	(252,800)
Stockholders' Equity Attributable to Parent, Ending Balance	44,545	41,097
Total liabilities and shareholders’ equity	$ 234,077	$ 213,379

Interim Consolidated Statements

Interim Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019
Income Statement [Abstract]
Revenue (note 3)	$ 99,547	$ 88,682	$ 285,091	$ 282,267
Cost of sales (note 9)	88,445	79,776	253,664	255,740
Gross profit	11,102	8,906	31,427	26,527
Selling, general and administrative expenses	6,710	6,549	21,036	19,908
Change in fair value of contingent consideration				(3,050)
Restructuring charges (notes 3 and 10)	871	6,454	525	8,624
Operating income	3,521	(4,097)	9,866	1,045
Fair value measurement loss (gain) on warrant liability (note 4)	133	(858)	15	(919)
Interest expense (note 3)	1,941	2,679	6,021	8,349
Net income(loss) before income taxes	1,447	(5,918)	3,830	(6,385)
Income tax expense (recovery) (note 6):
Current	286	(103)	872	592
Deferred	(82)	(81)	(15)	14
Total income tax expense	204	(184)	857	606
Net income (loss) and comprehensive income (loss)	$ 1,243	$ (5,734)	$ 2,973	$ (6,991)
Net income (loss) per share:
Basic	$ 0.04	$ (0.20)	$ 0.11	$ (0.28)
Diluted	$ 0.04	$ (0.20)	$ 0.10	$ (0.28)
Weighted average number of shares outstanding (note 7):
Basic	28,214,800	28,057,763	28,207,943	24,954,875
Diluted	29,636,319	28,057,763	29,629,462	24,954,875

Interim Consolidated Statemen_2

Interim Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Deficit [Member]
Balance at Dec. 30, 2018	$ 32,301	$ 458	$ 278,648	$ (246,805)
Balance (in shares) at Dec. 30, 2018		23,189,381
RSU vested and stock options exercised	46	$ 3	43
RSU vested and stock options exercised (in shares)		267,063
Treasury stock	(75)		(75)
Treasury stock (in shares)		21,264
Issuance of common shares from rights offering	14,044	$ 46	13,998
Issuance of common shares from rights offering (in shares)		4,642,030
Stock-based compensation	538		538
Net income (loss)	(6,991)			(6,991)
Balance at Sep. 29, 2019	39,863	$ 507	293,152	(253,796)
Balance (in shares) at Sep. 29, 2019		28,119,738
Balance at Jun. 30, 2019	45,273	$ 506	292,829	(248,062)
Balance (in shares) at Jun. 30, 2019		28,011,088
RSU vested and stock options exercised	46	$ 1	45
RSU vested and stock options exercised (in shares)		87,386
Treasury stock	(75)		(75)
Treasury stock (in shares)		21,264
Stock-based compensation	353		353
Net income (loss)	(5,734)			(5,734)
Balance at Sep. 29, 2019	39,863	$ 507	293,152	(253,796)
Balance (in shares) at Sep. 29, 2019		28,119,738
Balance at Dec. 29, 2019	41,097	$ 508	293,389	(252,800)
Balance (in shares) at Dec. 29, 2019		28,195,300
RSU vested and stock options exercised (in shares)		19,500
Stock-based compensation	475		475
Net income (loss)	2,973			2,973
Balance at Sep. 27, 2020	44,545	$ 508	293,864	(249,827)
Balance (in shares) at Sep. 27, 2020		28,214,800
Balance at Jun. 28, 2020	43,144	$ 508	293,706	(251,070)
Balance (in shares) at Jun. 28, 2020		28,214,800
Stock-based compensation	158		158
Net income (loss)	1,243			1,243
Balance at Sep. 27, 2020	$ 44,545	$ 508	$ 293,864	$ (249,827)
Balance (in shares) at Sep. 27, 2020		28,214,800

Interim Consolidated Statemen_3

Interim Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019
Operations:
Net income (loss)	$ 2,973	$ (6,991)
Items not involving cash:
Depreciation of property, plant and equipment	4,767	4,902
Amortization of intangible assets	2,718	5,532
Unrealized foreign exchange gain on unsettled forward exchange contracts	(720)
Write down of property, plant and equipment		261
Deferred income taxes expense (recovery)	(15)	14
Amortization of deferred financing fees and debt insurance costs	892	1,300
Stock-based compensation	475	538
Change in fair value of warrant liability	15	(919)
Change in fair value of contingent consideration		(3,050)
Change in non-cash operating working capital:
Accounts receivable	(3,487)	11,778
Unbilled contract assets	(16,465)	(6,385)
Inventories	(3,711)	3,668
Prepaid expenses and other assets	480	(1,095)
Income taxes receivable/payable	(63)	(116)
Accounts payable	3,678	(9,845)
Accrued liabilities	11,964	(265)
Restructuring liability	(1,233)	2,736
Net change in operating lease right of use asset and liability	184	414
Net cash provided by (used in) in operating activities	2,452	2,477
Financing:
Repayments (borrowing) of revolving credit facility	(345)	9,820
Repayment of long-term debt	(937)	(22,625)
Deferred financing fees	(137)	(371)
Principal repayments of finance lease obligations	(997)	(1,199)
Proceeds from issuance of common stock through exercise of stock options		45
Proceeds from issuance of common stock through rights offerings		14,044
Net cash provided by (used in) financing activities	(2,416)	(286)
Investing:
Purchase of property, plant and equipment	(1,235)	(3,191)
Net cash provided by (used in) investing activities	(1,235)	(3,191)
Decrease in cash	(1,199)	(1,000)
Cash, beginning of period	1,368	1,601
Cash, end of the period	169	601
Supplemental Information
Cash interest paid	5,643	6,856
Increase in operating right of use assets	3,707	5,559
Property, plant and equipment acquired through capital lease	1,447	126
Property, plant and equipment acquired that was unpaid in cash and included in accounts payable and accrued liabilities	$ 404	$ 418

Business and Basis of Presentat

Business and Basis of Presentation	9 Months Ended
	Sep. 27, 2020
Accounting Policies [Abstract]
Business and Basis of Presentation	1. Background SMTC Corporation (the “Company,” “we,” “our,” or “SMTC”) is a provider of end-to-end electronics manufacturing services (“EMS”), including product design and engineering services, printed circuit board assembly (“PCBA”), production, enclosure, cable assembly, precision metal fabrication, systems integration and comprehensive testing services, configuration to order (“CTO”), build to order (“BTO”) and direct order fulfillment (“DOF”). SMTC has more than 50 manufacturing and assembly lines at strategically located facilities in the United States, Canada and Mexico that provide local support and manufacturing capabilities to our global customers. SMTC’s services extend over the entire electronic product life cycle from new product development and new product introduction (“NPI”) through to growth, maturity and end of life phases. Basis of Presentation The accompanying unaudited interim consolidated financial statements of the Company have been prepared in accordance with the accounting principles and methods of application disclosed in the audited consolidated financial statements within the Company’s Form 10-K for the fiscal period ended December 29, 2019, (“Form 10-K”) filed with the Securities and Exchange Commission (the “SEC”) on March 13, 2020. The accompanying unaudited interim consolidated financial statements include adjustments of a normal, recurring nature that are, in the opinion of management, necessary for a fair statement of the consolidated financial statements under generally accepted accounting principles in the United States (“U.S. GAAP”). These unaudited interim consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements contained in the Company’s Form 10-K. The consolidated balance sheet at December 29, 2019 was derived from the audited annual consolidated financial statements, but does not contain all of the footnote disclosures from the annual consolidated financial statements. The preparation of financial statements requires management to make estimates and assumptions that affect the amounts reported in the unaudited condensed consolidated financial statements and accompanying notes. Due to the COVID-19 pandemic, the global economy and financial markets have been disrupted and there continues to be significant uncertainty about the length and severity of the consequences caused by the pandemic. Consequently, actual results could differ materially from these estimates and be significantly affected by the severity and duration of the pandemic, the extent of actions to contain or treat COVID-19, how quickly and to what extent normal economic and operating activity can resume, and the severity and duration of the global economic downturn that results from the pandemic. Unless otherwise specified or the context requires otherwise, all statements in these notes to the interim consolidated financial statements regarding financial figures are expressed in thousands of U.S. dollars. As at September 27, 2020, the additional funds available to borrow under our PNC Facility (as described and defined in note 4 below) after deducting the current borrowing base conditions and subject to debt covenants, should the Company require additional funding during the COVID-19 pandemic, was $30,464 (December 29, 2020 - $21,644). Transition of China Manufacturing During the fourth quarter of 2019, we ceased manufacturing in China and began to relocate the equipment used at our Dongguan manufacturing facility to our other North American sites. During the first quarter of 2020, we completed final shipments for customers serviced at our Chinese manufacturing facility and the relocation of that equipment. Customer concerns about uncertainties relating to the prolonged impact of tariffs and macro-economic factors caused a number of our customers to begin to re-evaluate demand for some of their products and reconsider where they outsource their manufacturing. These factors ultimately resulted in the decision to close the manufacturing facility.

Accounting Pronouncements

Accounting Pronouncements	9 Months Ended
	Sep. 27, 2020
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]
Accounting Pronouncements	2. Accounting Pronouncements Recent Accounting Pronouncements Adopted In August 2018, the FASB published ASU 2018-13: Fair Value Measurement (Topic 820): Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement. The amendment includes the removal, modification and addition of disclosure requirements under Topic 820. The amendments in this ASU are effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. The impact of the adoption of the standard expands the disclosure of certain assets and liabilities recorded at fair value. In March 2020, the FASB published ASU 2020-04: Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The amendments in this update are elective and provide optional guidance for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. The amendments in this Update are effective for all entities as of March 12, 2020, through December 31, 2022. An entity may elect to apply the amendments for contract modifications by Topic or Industry Subtopic as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020, or prospectively from a date within an interim period that includes or is subsequent to March 12, 2020, up to the date that the financial statements are available to be issued. Once elected for a Topic or an Industry Subtopic, the amendments in this Update must be applied prospectively for all eligible contract modifications for that Topic or Industry Subtopic. The impact of the adoption of the standard is not material to the Company, as alternative reference rates are available under the agreements governing the financial instruments. Recent Accounting Pronouncements Not Yet Adopted In May 2016, the FASB published ASU 2016-13: Financial Instruments – Credit losses (Topic 326): Measurement of Credit Losses on Financial Instruments. The main objective of Topic 326 is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. To achieve this objective, the amendments in this update replace the incurred loss impairment methodology in current U.S. GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. In April 2019, the FASB published ASU 2019-04 Codification Improvements to Topic 326, Financial Instruments – Credit Losses, which made certain amendments and corrections to the original codification. In May 2019, the FASB published ASU 2019-05 Financial Instruments – Credit losses (Topic 326) which made transitional relief available, specifically allowing the option to elect a fair value option for financial instruments measured at amortized cost. In November 2019, the FASB published ASU 2019-11 Codification Improvements to Topic 326, Financial Instruments – Credit losses, which made certain amendments and corrections to the original codification. In November 2019, the FASB published ASU 2019-10 Financial Instruments – Credit losses (Topic 326), which made certain amendments to the effective dates of the new standard. The amendment is effective for the Company for years beginning after December 15, 2022 including interim periods with those years. On March 9, 2020, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2020-03 Codification Improvements to Financial Instruments. The Company is currently evaluating the impact of this accounting standard, but it is expected that the new standard may result in additional credit losses being recorded. In January 2017, the FASB published ASU 2017-04: Intangibles – Goodwill and Other (Topic 350): Topic 350 seeks to simplify goodwill impairment testing requirements for public entities. Under the amendments in this update, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. Additionally, an entity should consider income tax effects from any tax-deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable. The FASB also eliminated the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test. Therefore, the same impairment assessment applies to all reporting units. An entity is required to disclose the amount of goodwill allocated to each reporting unit with a zero or negative carrying amount of net assets. The amendments in this ASU are effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2022. The Company is currently evaluating the impact of this accounting standard. However, it is expected that this may reduce the complexity of evaluating goodwill for impairment. In December 2019, the FASB published ASU 2019-12: Income Taxes (Topic 740): Simplifying the Accounting for income taxes. The purpose of this codification is to simplify the accounting for income taxes, which addresses a number of topics including but not limited to the removal of certain exceptions currently included in the standard related to intraperiod allocation when there are losses, in addition to calculation of income taxes when current year-to-date losses exceed anticipated loss for the year. The amendment also simplifies accounting for certain franchise taxes and disclosure of the effect of enacted change in tax laws or rates. Topic 740 is effective for public entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. The impact of the adoption of the standard has not yet been determined and is being evaluated.

Interim Consolidated Financial

Interim Consolidated Financial Statement Details	9 Months Ended
	Sep. 27, 2020
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]
Interim Consolidated Financial Statement Details	3. The following consolidated financial statement details are presented as of the period ended for the consolidated balance sheets and for the periods ended for each of the consolidated statements of operations and comprehensive income (loss). Consolidated Balance Sheets Accounts receivable – net: September 27, 2020 December 29, 2019 Trade accounts receivable $ 75,000 $ 71,113 Other receivables 731 1,098 Allowance for doubtful accounts (2,325 ) (2,292 ) Total $ 73,406 $ 69,919 The allowance for doubtful accounts pertains primarily to one customer previously serviced out of Dongguan China. This was provisioned and included with the restructuring charges for the closure of the facility in 2019. Refer to note 10 for further details of the restructuring. To date, there has been no material impact of the COVID-19 pandemic on the allowance for doubtful accounts. Unbilled contract assets September 27, 2020 December 29, 2019 Opening $ 26,271 $ 20,405 Contract assets additions 276,330 350,709 Contract assets invoiced (259,865 ) (344,843 ) Ending $ 42,736 $ 26,271 Inventories: September 27, 2020 December 29, 2019 Raw materials $ 51,783 $ 48,067 Parts and other 292 586 Provision for obsolescence (538 ) (827 ) Total $ 51,537 $ 47,826 The provision for obsolescence primarily pertains to customers previously serviced out of the Dongguan facility. These have been provisioned and included with the restructuring charges for the closure of the facility in 2019. Refer to note 10 for further details of the restructuring. Property, plant and equipment – net: September 27, 2020 December 29, 2019 Cost: Land $ 1,648 $ 1,648 Buildings (b) 18,985 18,985 Machinery and equipment (a) (e) 44,116 42,732 Office furniture and equipment (c) (e) 869 1,005 Computer hardware and software (d) (e) 3,940 3,979 Leasehold improvements (e) 4,447 4,265 74,005 72,614 Less accumulated depreciation: Land — — Buildings (b) (11,220 ) (10,392 ) Machinery and equipment (a) (e) (33,727 ) (31,192 ) Office furniture and equipment (c) (e) (423 ) (546 ) Computer hardware and software (d) (e) (3,162 ) (3,289 ) Leasehold improvements (e) (2,076 ) (1,885 ) (50,608 ) (47,304 ) Property, plant and equipment—net $ 23,397 $ 25,310 (a) Included within machinery and equipment were assets under finance leases with costs of $4,193 and $2,275 and associated accumulated depreciation of $1,539 and $974 as of September 27, 2020 and December 29, 2019, respectively. The related depreciation expense for the three months ended September 27, 2020 and September 29, 2019 was $134 and $142, respectively. The related depreciation expense for the nine months ended September 27, 2020 and September 29, 2019 was $356 and $426, respectively. (b) Included within buildings are costs associated with Melbourne facility under finance leases of $9,082 and associated accumulated depreciation of $1,504 and $900 as of and 29, 2019, respectively. The related depreciation expense for the and was $201 and $201, respectively. The related depreciation expense for n and September 29, 2019 was $604 and $603, respectively. (c) September 27, 2020 December September 27, 2020 September 29, 2019 September 27, 2020 (d) Included within computer hardware and software were assets under finance leases with costs of $91 and associated accumulated depreciation of $73 and $51 as of September 27, 2020 December September 27, 2020 September 29, 2019 September 27, 2020 (e) Fully depreciated property, plant and equipment with cost of $1,466 and accumulated amortization of $1,463 was written off in the nine months ended September 27, 2020. Intangible assets: September 27, 2020 December 29, 2019 Cost: Customer relationships $ 12,350 $ 12,350 Order backlog 6,990 6,990 Trade name 1,300 1,300 Non-compete agreements 360 360 21,000 21,000 Less accumulated amortization: Customer relationships (2,340 ) (1,414 ) Order backlog (6,990 ) (5,333 ) Trade name (1,300 ) (1,300 ) Non-compete agreements (341 ) (206 ) (10,971 ) (8,253 ) Intangible assets—net $ 10,029 $ 12,747 These intangible assets arose from the acquisition of MC Assembly Holdings Inc. (“MC Assembly”) in November 2018 and were allocated to the following operating segments: September 27, 2020 December 29, 2019 U.S. $ 3,009 $ 3,824 Mexico 7,020 8,923 Total $ 10,029 $ 12,747 Amortization expense of $2,718 was recorded in cost of sales in the consolidated statement of operations and comprehensive income(loss) for the nine months ended September 27, 2020, and $5,532 for the nine months ended September 29, 2019. Amortization expense for the next five years and thereafter is as follows: 2020 $ 328 2021 1,235 2022 1,235 2023 1,235 2024 1,235 2025 and thereafter 4,761 Total amortization $ 10,029 Goodwill: The carrying value of goodwill as at September 27, 2020 was $18,165 (December 29, 2019 – $18,165). This goodwill arose from the acquisition of MC Assembly in November 2018 and was allocated to the following operating segments that are expected to benefit from the synergies of this business combination and has not changed since the acquisition: September 27, 2020 December 29, 2019 U.S. $ 5,449 $ 5,449 Mexico 12,716 12,716 Total $ 18,165 $ 18,165 The carrying value of goodwill is assessed annually at year-end and at each reporting period for impairment triggers to determine whether there exists any indicators of impairment. The assessment is done at the operating segment level as the group of components (production facilities) within each operating segment all have similar economic characteristics. Our business operations have generally performed as expected during the first nine months of 2020. While the COVID-19 pandemic creates significant uncertainty, in the near term, the Company did not identify any triggering events as at September 27, 2020. Accrued liabilities: September 27, 2020 December 29, 2019 Payroll $ 7,515 $ 5,504 Customer related 6,347 2,185 Deferred revenue 5,915 — Vendor related 1,436 1,742 Professional services 644 612 Interest 330 860 Other 938 261 Total $ 23,125 $ 11,164 Deferred Revenue is recorded when the Company invoices and becomes eligible to receive payment for goods or services prior to the transferring of goods or services to the customer under the terms of the contract (i.e., all revenue recognition criteria are not yet met), which is included within accrued liabilities. As of September 27, 2020 and December 29, 2019, the balance of deferred revenue was $5,915 and Nil, respectively. Revenue of $899 was recognized during the nine months ended September 27, 2020. The accounts receivable balances associated with the deferred revenue invoicing was $5,915 as at September 27, 2020 with no corresponding deferred revenue invoices in accounts receivable as at December 29, 2019 Consolidated Statements of Operations and Comprehensive Income (Loss) Interest expense: Three months ended Nine months ended September 27, 2020 September 29, 2019 September 27, 2020 September 29, 2019 Long-term debt $ 1,012 $ 1,135 $ 3,080 $ 4,596 Revolving credit facility 415 597 1,449 1,813 Amortization of deferred financing fees 59 50 169 122 Amortization of debt issuance costs 245 705 723 1,178 Obligations under finance leases 195 192 575 640 Other interest 15 — 25 — Total $ 1,941 $ 2,679 $ 6,021 $ 8,349

Debt

Debt	9 Months Ended
	Sep. 27, 2020
Debt Disclosure [Abstract]
Debt	4. Debt (a) Revolving credit and long-term debt facilities September 27, 2020 December 29, 2019 Revolving credit facility $ 34,356 $ 34,701 Term loans: Term loan A facility $ 37,813 $ 38,750 Less deferred debt issue costs (1,928 ) (2,286 ) Less unamortized discount on debt (1,184 ) (1,464 ) Total term loans $ 34,701 $ 35,000 Less current portion (2,188 ) (1,250 ) Long term portion $ 32,513 $ 33,750 The Company borrows money under an Amended and Restated Revolving Credit and Security Agreement with PNC Bank, National Association (“PNC”) which governs the Company’s revolving credit facility (“PNC Facility”). The PNC Facility has a term ending on November 8, 2023. Advances made under the PNC Facility bear interest at the U.S. base rate plus a grid ranging from 0.50% to 1.00% or 1, 2 or 3-month fully-absorbed PNC LIBOR plus a grid ranging from 1.50% to 2.00%. The base commercial lending rate should approximate U.S. prime rate. The Company also borrows money under a Financing Agreement (the “Financing Agreement”), by and among the Company and certain of its subsidiaries, the lenders party to the Financing Agreement from time to time (collectively, the “Lenders”), and TCW Asset Management Company, LLC, as collateral agent for the Lenders (“TCW”). The Financing Agreement governs a term loan A facility (the “Term A Loan Facility” and together with the PNC Facility, the “Credit Facilities” and previously governed a term loan B facility (the “Term Loan B Facility”) until it was paid in full on July 3, 2019. The Term Loan A Facility matures on November 8, 2023 (the “Maturity Date”). The Term Loan A Facility bears interest LIBOR plus an applicable margin of 8.75% through June 30, 2020, and borrowings under the Financing Agreement will thereafter bear interest at LIBOR plus an applicable margin ranging from 7.25% to 8.75%. Payments made under the Term Loan A Facility at any time prior to the Maturity Date (other than scheduled amortization payments and mandatory prepayments) are subject to an applicable premium equal to the amount of such payment multiplied by (i) 3.00% in the event that such payment occurs before November 8, 2019, (ii) 2.00% in the event that such payment occurs after November 8, 2019 and on or before November 8, 2020, and (iii) 1.00% in the event that such payment occurs after November 8, 2020 and on or before November 8, 2021. No such applicable premium is payable for any payment of loans made under the Term Loan A Facility occurring after November 8, 2021. On June 26, 2020, the Company, entered into the Fourth Amendment to the Amended and Restated Revolving Credit and Security Agreement (“PNC Fourth Amendment”) and the Fifth Amendment to the Financing Agreement (“TCW Fifth Amendment”). The PNC Fourth Amendment and TCW Fifth Amendment, among other things, amend the definition of “Consolidated EBITDA” by permitting an addback for (i) non-recurring labor costs, temporary employee bonuses to reduce absenteeism, personal protective equipment costs, facility sanitation costs, and excess freight and logistics costs, not to exceed $1,200, and (ii) restructuring and severance charges, accruals and reserves in connection with permanent headcount reductions, in an aggregate amount not to exceed $1,000 with respect to corporate selling, general and administrative employees, in each case, for the period from June 1, 2020, to and including July 31, 2020. The PNC Fourth Amendment and TCW Fifth Amendment also amends the definition of “Permitted Purchase Money Indebtedness” to (i) allow for Indebtedness (as defined in the PNC Agreement) pursuant to financing provided by a third party lender for any fixed or tangible assets acquired prior to the June 26, 2020, and (ii) increase the aggregate principal amount of all Indebtedness (as defined in the PNC Agreement and Financing Agreement) permitted under the PNC Agreement to $3,750. On September 25, 2020, the Company, entered into the Fifth Amendment to the Amended and Restated Revolving Credit and Security Agreement (“PNC Fifth Amendment”). The PNC Fifth Amendment, among other things, (i) amends the definition of “Consolidated EBITDA” by permitting an addback for non-recurring labor costs, temporary employee bonuses to reduce absenteeism, personal protective equipment costs, facility sanitation costs, and excess freight and logistics costs, not to exceed an additional $1,500for the three months ended September 27, 2020, and (ii) provides for borrowings of up to $2,000 on certain consigned assets. On September 25, 2020, the Company entered into the Sixth Amendment to the Financing Agreement (“TCW Sixth Amendment”). The TCW Sixth Amendment, among other things, amends the definition of “Consolidated EBITDA” by permitting an addback for non-recurring labor costs, temporary employee bonuses to reduce absenteeism, personal protective equipment costs, facility sanitation costs and excess freight and logistics costs, not to exceed an additional $1,500 for the three months ended September 27, 2020. As at September 27, 2020, the additional funds available to borrow under the PNC Facility after deducting the current borrowing base conditions were $30,464 (December 29, 2019 - $21,644). The maximum amount of funds that could be available under the PNC Facility is $65,000. However, availability under the PNC Facility is subject to certain conditions, including borrowing base conditions based on eligible inventory and accounts receivable, and certain conditions as determined by PNC. The Company is required to use a “lock-box” arrangement for the PNC Facility, whereby remittances from customers are swept daily to reduce the borrowings under this facility. At September 27, 2020, $34,356 (December 29, 2019 - $34,701) was outstanding under the PNC Facility and is classified as a current liability based on the requirement to hold a “lock-box” under the terms of the PNC Facility. At September 27, 2020, $37,813 (December 29, 2019 - $38,750) was outstanding under the TCW Term Loan A Facility. The TCW Facilities are reported on the consolidated balance sheet net of deferred financing fees of $1,928 (December 29, 2019 - $2,286) and a discount on debt of $1,184 (December 29, 2019 - $1,464) related to the outstanding warrants described below. The Credit Facilities are joint and several obligations of the Company and its subsidiaries that are borrowers under the Credit Facilities and are jointly and severally guaranteed by other subsidiaries of the Company. Repayment under the PNC Facility and Term A Loan Facility are collateralized by the assets of the Company and each of its subsidiaries. (b) Covenants The Credit Facilities contain certain financial and non-financial covenants, including restrictions on dividend payments. The financial covenants require the Company to maintain a fixed charge coverage ratio and a total leverage ratio quarterly during the term of the Credit Facilities. The Company was in compliance with the covenants included in the Credit Facilities as at September 27, 2020. The Company’s continued financial covenant compliance will depend on key variables, including the Company’s cash flow from earnings before interest, income taxes and depreciation as well as debt levels. For context, assuming no change to forecast debt balances, a reduction of approximately 14% of forecast earnings before interest, income taxes, depreciation and amortization as defined in PNC Agreement and Financing Agreement over the next twelve month period, could jeopardize covenant compliance at the end of our third quarter 2021. The Company attempts to address risks of covenant compliance by taking measures to reduce its inventory, revolving credit facility and term debt balances as necessary. Market conditions, including the implications of the COVID-19 pandemic, may negatively impact our ability to secure and source alternative methods of financing. We do not currently foresee a material impact in the short term based on our working capital needs, however if a number of our customers reduce or temporarily cease payments to us, this would present a risk and negatively impact our cash flow and ability to meet our working capital obligations to operate our business, which could require us to secure alternative methods of financing. The Company continues to monitor operations and results closely and manage debt levels relative to our operational results to ensure compliance with its lenders covenants. (c) Warrant liability On November 8, 2018, 504,735 warrants were issued to TCW in connection with the Financing Agreement and are outstanding as at September 27, 2020. As a result of the anti-dilution provisions contained in the warrants that were triggered in connection with the Rights Offering and the Registered Direct Offering in June 2019, the warrants were exercisable to purchase an additional 7,214 shares of common stock (or a total of 511,949 shares) at September 27, 2020. These warrants are exercisable on a cashless basis, or for an exercise price of $0.01. The Company initially recorded the value of the warrants as a warrant liability with a corresponding discount on the long-term debt in the amount of $1,898. The fair value has been assessed at $3.41 per unit or $1,746 as at September 27, 2020 ($3.38 per unit or $1,730 – December 29, 2019). The fair value of the warrant obligation is presented as a warrant liability on the consolidated balance sheet with changes to the fair value recorded each reporting period as either a gain or a loss in the consolidated statement of operations and comprehensive income (loss).

Capital Stock

Capital Stock	9 Months Ended
	Sep. 27, 2020
Equity [Abstract]
Capital Stock	5. Common shares Issued and outstanding: The issued and outstanding number of common shares included in shareholders’ equity consisted of the following: Number of shares $ Balance at December 29, 2019 $ 28,195,300 $ 508 New share issuance-vested stock awards 19,500 - Balance September 27, 2020 $ 28,214,800 $ 508 Stock Options For more detailed information regarding the Company’s stock option arrangements, see Note 7 of the consolidated financial statements within the Company’s Form 10-K for the fiscal period ended December 29, 2019. During the nine months ended September 27, 2020, there were no stock options granted, exercised or forfeited. A summary of stock option activity for the nine months ended September 27, 2020 is as follows: Number of options Weighted average exercise price Aggregate intrinsic value Weighted average remaining contractual term (years) Outstanding at December 29, 2019 2,344,374 $ 2.14 2,016 7.9 Options granted — — — — Options exercised — — — — Options forfeited — — — — Outstanding at September 27, 2020 2,344,374 2.14 2,049 7.2 Exercisable at September 27, 2020 1,088,140 1.55 2,024 6.5 During the three-month periods ended September 27, 2020 and September 29, 2019, the Company recorded stock-based compensation expense related to stock options and a corresponding increase in additional paid-in capital of $57 and $57, respectively. During the nine months ended September 27, 2020 and September 29, 2019, the Company recorded stock-based compensation expense related to stock options and a corresponding increase in additional paid-in capital of $172 and $120, respectively. Certain stock options outstanding have market conditions such that the awards are vested and exercisable only if the Company’s stock exceeds specified targets during the vesting period. If the market conditions are not met, the stock options will not vest and will expire. Restricted Stock Units and Restricted Stock Awards For more detailed information regarding the Company’s Restricted Stock Units (“RSU”) and Restricted Stock Awards (“RSA”) arrangements, see Note 7 of the consolidated financial statements within the Company’s Form 10-K for the fiscal period ended December 29, 2019. During the nine months ended September 27, 2020, 178,000 RSUs were granted. A summary of the RSU activity for the nine months ended September 27, 2020 is as follows: Outstanding RSU Weighted average stock price Weighted average remaining contractual term (years) Outstanding balance at December 29, 2019 348,000 $ 3.16 2.23 RSU granted 178,000 2.92 RSU vested and issued in common shares (19,500 ) 1.28 RSU forfeited (27,500 ) (1.28 ) Outstanding at September 27, 2020 479,000 3.14 2.18 Stock based compensation recognized during the three-month period ended September 27, 2020 and September 29, 2019 related to the restricted stock units was $101 and $296, respectively. Stock based compensation recognized during the nine months ended September 27, 2020, and September 29, 2019, related to the restricted stock units was $303 and $418, respectively.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 27, 2020
Income Tax Disclosure [Abstract]
Income Taxes	6. During the nine months ended September 27, 2020 and September 29, 2019, the Company recorded current income tax expense $872 and $592, respectively, in connection with U.S. state taxes and taxes on profits in certain foreign jurisdictions, and deferred income tax (recovery) expense of ($15) and $14, respectively, in connection with temporary differences related to the Mexican operations. In assessing the realization of deferred tax assets, management considers whether it is more likely than not that some portion or all of its deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income. Management considers the scheduled reversal of deferred tax liabilities, change of control limitations, projected future taxable income and tax planning strategies in making this assessment. Guidance under ASC 740, Income Taxes (“ASC 740”) states that forming a conclusion that a valuation allowance is not needed is difficult when there is negative evidence, such as cumulative losses in recent years in the jurisdictions to which the deferred tax assets relate. The U.S., Canadian and Asian jurisdictions continue to have a full valuation allowance recorded against the deferred tax assets.

Earnings Per Common Share

Earnings Per Common Share	9 Months Ended
	Sep. 27, 2020
Earnings Per Share [Abstract]
Earnings per Common Share	7. The following table details the weighted average number of common shares outstanding for the purposes of computing basic and diluted earnings per common share for the following periods: Three months ended Nine months ended (Number of common shares) September 27, 2020 September 29, 2019 September 27, 2020 September 29, 2019 Basic weighted average shares outstanding 28,214,800 28,057,763 28,207,943 24,954,875 Dilutive stock awards (a,b) 1,421,519 — 1,421,519 — Diluted weighted average shares outstanding 29,636,319 28,057,763 29,629,462 24,954,875 (a) For the three and nine months ended September 27, 2020, as a result of net income for the periods, dilutive earnings per share were calculated using the treasury stock method. The dilutive stock awards have been calculated as 1,421,519 for the three and nine months ended September 27, 2020, related to the outstanding unvested restricted stock units and incremental in-the-money stock options. (b) For the three and nine months ended September 29, 2019, as a result of net loss for the period, dilutive stock awards are not presented as this would be antidilutive. Had there been net income for the periods, the dilutive stock awards would have been calculated as 754,820 for the three and nine months ended September 29, 2019, related to outstanding unvested restricted stock units and incremental in-the-money stock options.

Segment Information

Segment Information	9 Months Ended
	Sep. 27, 2020
Segment Reporting [Abstract]
Segmented Information	8. General description During the nine months ended September 27, 2020, the Company operated and managed by geographic region in the United States, Mexico and China, which are our operating and reportable segments. Commencing in the three months ended June 28, 2020, China is no longer included as a reportable segment. During the three months ended March 29, 2020, the Company completed final shipments for customers serviced in our Chinese manufacturing facility and the relocation of the equipment to our other North American sites. We utilize each reportable segment’s contribution (revenue minus operating expenses, excluding unrealized foreign exchange gain (loss) on unsettled forward foreign exchange contracts, corporate allocations and restructuring expenses) to monitor reportable segment performance. Contribution by country is utilized by the chief operating decision-maker (defined as the Chief Executive Officer) as the indicator of reportable segment performance, as it reflects costs which our operating segment management are directly responsible for. Intersegment adjustments reflect intersegment sales that are generally recorded at prices that approximate arm’s-length transactions. In assessing the performance of the reportable segments, management attributes site revenue to the reportable segment that ships the product to the customer, irrespective of the product’s destination. Information about the reportable segments is as follows: Three months ended Nine months ended September 27, 2020 September 29, 2019 September 27, 2020 September 29, 2019 Revenue Mexico $ 61,625 $ 57,328 $ 183,791 $ 182,424 China — 8,092 4,206 22,541 U.S. 38,227 27,426 103,744 86,448 Total $ 99,852 $ 92,846 $ 291,741 $ 291,413 Intersegment revenue Mexico $ (136 ) $ (550 ) $ (2,706 ) $ (1,293 ) China — (3,580 ) (3,302 ) (7,687 ) U.S. (169 ) (34 ) (642 ) (166 ) Total $ (305 ) $ (4,164 ) $ (6,650 ) $ (9,146 ) Net external revenue Mexico $ 61,489 $ 56,778 $ 181,085 $ 181,131 China — 4,512 904 14,854 U.S. 38,058 27,392 103,102 86,282 Total segment revenue (which also equals consolidated revenue) $ 99,547 $ 88,682 $ 285,091 $ 282,267 Segment contribution Mexico $ 5,334 $ 4,815 $ 16,297 $ 15,456 China — 1,313 (2 ) 3,012 U.S. 2,521 2,191 7,753 5,378 Total $ 7,855 $ 8,319 $ 24,048 $ 23,846 Corporate expenses 3,725 5,962 14,377 17,227 Restructuring charges 871 6,454 525 8,624 Change in fair value of warrant liability 133 (858 ) 15 (919 ) Change in fair value of contingent consideration — — — (3,050 ) Unrealized foreign exchange gain on unsettled forward exchange contracts (262 ) — (720 ) — Interest expense 1,941 2,679 6,021 8,349 Income (loss) before income taxes $ 1,447 $ (5,918 ) $ 3,830 $ (6,385 ) Three months ended September 27, 2020 Mexico U.S. China Total Market Sector: Test and Measurement $ 147 $ 8,019 $ — $ 8,166 Retail and Payment Systems 10,295 — — 10,295 Telecom, Networking and Communications 2,755 2,021 — 4,776 Medical and Safety 7,072 4,198 — 11,270 Industrial IoT, Power and Clean Technology 29,629 7,387 — 37,016 Semiconductors 11,591 4,436 — 16,027 Avionics, Aerospace and Defense — 11,997 — 11,997 Segment Revenue 61,489 38,058 — 99,547 Revenue by category Mexico U.S. China Total Point in time $ 1,142 $ 3,697 $ — $ 4,839 Over time 60,347 34,361 — 94,708 Total Revenue 61,489 38,058 — 99,547 Three months ended September 29, 2019 Mexico U.S. China Total Market Sector: Test and Measurement $ 534 $ 8,287 $ — $ 8,821 Retail and Payment Systems 10,460 — — 10,460 Telecom, Networking and Communications 3,986 1,393 4,192 9,571 Medical and Safety 7,861 2,637 40 10,538 Industrial IoT, Power and Clean Technology 26,610 9,851 280 36,741 Semiconductors 7,327 — — 7,327 Avionics, Aerospace and Defense — 5,224 — 5,224 Segment Revenue 56,778 27,392 4,512 88,682 Revenue by category Mexico U.S. China Total Point in time $ 492 $ 2,223 $ 871 $ 3,586 Over time 56,286 25,169 3,641 85,096 Total Revenue 56,778 27,392 4,512 88,682 Nine months ended September 27, 2020 Mexico U.S. China Total Market Sector: Test and Measurement $ 724 $ 24,632 $ — $ 25,356 Retail and Payment Systems 29,368 — — 29,368 Telecom, Networking and Communications 7,554 9,035 714 17,303 Medical and Safety 23,498 9,693 130 33,321 Industrial IoT, Power and Clean Technology 88,102 23,217 60 111,379 Semiconductors 31,839 5,589 — 37,428 Avionics, Aerospace and Defense — 30,936 — 30,936 Segment Revenue 181,085 103,102 904 285,091 Revenue by category Mexico U.S. China Total Point in time $ 2,192 $ 6,117 $ 452 $ 8,761 Over time 178,893 96,985 452 276,330 Total Revenue 181,085 103,102 904 285,091 Nine months ended September 29, 2019 Mexico U.S. China Total Test and Measurement $ 4,968 $ 28,941 $ — $ 33,909 Retail and Payment Systems 35,538 — — 35,538 Telecom, Networking and Communications 11,493 5,784 11,076 28,353 Medical and Safety 24,362 9,393 481 34,236 Industrial IoT, Power and Clean Technology 84,389 25,122 3,297 112,808 Semiconductors 20,381 16 — 20,397 Avionics, Aerospace and Defense — 17,026 — 17,026 Segment Revenue 181,131 86,282 14,854 282,267 Revenue by category Mexico U.S. China Total Point in time $ 1,708 $ 5,321 $ 946 $ 7,975 Over time 179,423 80,961 13,908 274,292 Total Revenue 181,131 86,282 14,854 282,267 Certain customers were reclassified from the Test and Measurement sector to the Industrial IoT, Power and Clean Technology sector and Semiconductors sector, Avionics, Aerospace and Defense sector to Medical and Safety sector during the three months and nine months ended September 27, 2020. The comparative three and nine month periods have been adjusted to conform to this classification. Additions to property, plant and equipment The following table contains additions, including those acquired through capital leases, to property, plant and equipment for the three and nine months ended: Three months ended Nine months ended September 27, 2020 September 29, 2019 September 27, 2020 September 29, 2019 U.S. $ 676 $ 446 $ 1,595 $ 963 Mexico 763 859 1,249 2,212 China 3 98 5 152 Segment total 1,442 1,403 2,849 3,327 Corporate and other 5 — 8 24 Total $ 1,447 $ 1,403 $ 2,857 $ 3,351 Property, plant and operating lease right of use assets (a) September 27, 2020 December 29, 2019 U.S. $ 19,058 $ 16,904 Mexico 10,125 10,970 China — 670 Segment total 29,183 28,544 Corporate and other 111 96 Total $ 29,294 $ 28,640 Other long term segment assets (b) September 27, 2020 December 29, 2019 U.S. $ 8,458 $ 9,273 Mexico 20,291 22,179 China — — Segment total 28,749 31,452 Corporate and other 742 859 Total $ 29,491 $ 32,311 Total segment assets (a) September 27, 2020 December 29, 2019 U.S. $ 132,313 $ 112,789 Mexico 101,212 93,349 China — 6,694 Segment total 233,525 212,832 Corporate and other 552 547 Total $ 234,077 $ 213,379 (a) Property, plant and equipment information is based on the principal location of the asset. (b) Includes Goodwill, Intangible assets, deferred income taxes and deferred financing costs. Geographic revenue The following table contains geographic revenue based on our customer invoicing location, for the nine months ended September 27, 2020 and September 29, 2019. Three months ended Nine months ended September 27, 2020 September 29, 2019 September 27, 2020 September 29, 2019 U.S. $ 95,381 $ 83,276 $ 270,303 $ 260,210 Canada 4,166 3,916 13,834 13,686 China — 1,490 954 8,371 Total $ 99,547 $ 88,682 $ 285,091 $ 282,267 Significant customers and concentration of credit risk Sales of the Company’s products are concentrated in certain cases among specific customers in the same industry. The Company is subject to concentrations of credit risk in trade receivables. The Company considers concentrations of credit risk in establishing the allowance for doubtful accounts and believes the recorded allowances are adequate. The Company expects to continue to depend upon a relatively small number of customers for a significant percentage of its revenue. In addition to having a limited number of customers, the Company manufactures a limited number of products for each customer. If the Company loses any of its larger customers or any product line manufactured for one of its larger customers, it could experience a significant reduction in revenue. Also, the insolvency of one or more of its larger customers or the inability of one or more of its larger customers to pay for its orders could decrease revenue. As many costs and operating expenses are relatively fixed, a reduction in net revenue can decrease profit margins and adversely affect the business, financial condition and results of operations. During the nine months ended September 27, 2020, two customers exceeded 10% of total revenue, comprising of 22.7% of total revenue across all geographic segments. During the nine months ended September 29, 2019, one customer exceeded 10% of total revenue, comprising of 13.4% of total revenue across all geographic segments. As of September 27, 2020, no customers represented more than 10% of the trade accounts receivable. At December 29, 2019, one customer comprised 10% of the Company’s trade accounts receivable. No other customers individually represented more than 10% of total revenue or trade accounts receivable.

Derivative Financial Instrument

Derivative Financial Instruments	9 Months Ended
	Sep. 27, 2020
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivative financial instruments	9. Derivative financial instruments During the nine months ended September 27, 2020, the Company entered into forward foreign exchange contracts to reduce its exposure to foreign exchange currency rate fluctuations related to forecasted Mexican peso expenditures. These contracts were effective as hedges from an economic perspective, but do not meet the requirements for hedge accounting under ASC Topic 815 “Derivatives and Hedging”. Accordingly, changes in the fair value of these contracts were recognized into net income in the consolidated statement of operations and comprehensive income (loss). The Company had no outstanding forward foreign exchange contracts in the first nine months of 2019. The following table presents a summary of the outstanding foreign currency forward contracts as at September 27, 2020: Currency Buy/Sell Foreign Currency Amount Notional Contract Value in USD Mexican Peso Buy 180,000 MXN $ 7,212 The unrealized gain recognized in earnings as a result of revaluing the instruments to fair value on September 27, 2020 for the nine months period ended was $720 (September 29, 2019– $Nil) which was included in cost of sales in the interim consolidated statement of operations and comprehensive income (loss). Fair value is determined using the market approach with valuation based on market observables (Level 2 quantitative inputs in the hierarchy set forth under ASC 820 “Fair Value Measurements”). The average contract and mark-to-market rates for outstanding forward foreign exchange contracts were as follows: September 27, 2020 December 29, 2019 Average USD:PESO contract rate 24.96 N/A Average USD:PESO mark-to-market rate 22.69 N/A The derivative assets were $720 as at September 27, 2020 (September 29, 2019 –Nil) which reflected the fair market value of the unsettled forward foreign exchange contracts. There was no derivative liability as at September 27, 2020 or September 29, 2019.

Restructuring Charges

Restructuring Charges	9 Months Ended
	Sep. 27, 2020
Restructuring And Related Activities [Abstract]
Restructuring Charges	10. In July 2020, the Company executed it plans to reduce headcount, which impacted 307 full-time equivalents (“FTEs”), representing 287 FTEs in its Zacatecas facility and 20 FTEs located in the U.S. A restructuring charge of $1,163 was recorded during the three months ended September 27, 2020. The remaining restructuring accrual as at September 27, 2020 was $194 and is scheduled to be paid by the end of December 2020. Dongguan facility closure In September 2019, the Company announced it plans to close its Dongguan manufacturing facility in China, concurrent with the expiration of the facility lease in December 2019, which was extended to February 2020. The closure was formally approved by the Board of Directors in September 2019. A restructuring charge of $5,000 was recorded in the twelve months ended December 29, 2019 relating to the announced planned closure. The closure of the Dongguan facility resulted in a reduced labor force by approximately 137 employees. The employee group was notified of the closure in the last week of September 2019. The closure of the Dongguan facility and majority of the cash outflows associated with severance and other exit costs which was substantially completed by the end of the first quarter of 2020. During the nine months ended September 27, 2020, restructuring recoveries were recorded of $753 primarily related to shipments and cash payments received on previously provisioned Dongguan inventory, in addition to restructuring reversals as actuals payments were less than anticipated. Remaining activities include a small number of support staff performing administrative duties, professional services to be rendered with respect to the closure activities, taxes and duties to be settled in addition to severance payments. Substantially all of the costs are anticipated to be spent by the third quarter of 2020. Manufacturing by the Company of certain products previously manufactured at the Dongguan facility has been transferred to the Company’s other manufacturing facilities. As at September 27, 2020, the Company had $17 of accrued restructuring charges remaining related to Dongguan to be paid by the end of the fourth quarter of 2020 primarily related to employee severance and legal fees. Restructuring Liability Termination benefits and other exit costs Balance as at December 29, 2019 $ 1,597 Involuntary employee termination benefits 1,278 Provisions reversed unutilized (753 ) Payments—Dongguan severance and other exit cost payment (549 ) Payments— (U.S., Canada and Mexico) (1,209 ) At September 27, 2020 $ 364

Commitments

Commitments	9 Months Ended
	Sep. 27, 2020
Commitments And Contingencies Disclosure [Abstract]
Commitments	11. Purchase obligations not recorded on the balance sheet as at September 27, 2020 consist of open non-cancellable purchase orders (PO) for raw materials for $37,708, which are expected to be paid within 12 months of the PO issue date. Purchase obligations not recorded on the balance sheet as at December 29, 2019, consisted of open non-cancellable purchase orders for raw materials for $25,866 to be paid within 12 months of the PO issue date.

Interim Consolidated Financia_2

Interim Consolidated Financial Statement Details (Tables)	9 Months Ended
	Sep. 27, 2020
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]
Consolidated Balance Sheets	September 27, 2020 December 29, 2019 Trade accounts receivable $ 75,000 $ 71,113 Other receivables 731 1,098 Allowance for doubtful accounts (2,325 ) (2,292 ) Total $ 73,406 $ 69,919 September 27, 2020 December 29, 2019 Opening $ 26,271 $ 20,405 Contract assets additions 276,330 350,709 Contract assets invoiced (259,865 ) (344,843 ) Ending $ 42,736 $ 26,271 September 27, 2020 December 29, 2019 Raw materials $ 51,783 $ 48,067 Parts and other 292 586 Provision for obsolescence (538 ) (827 ) Total $ 51,537 $ 47,826 September 27, 2020 December 29, 2019 Cost: Land $ 1,648 $ 1,648 Buildings (b) 18,985 18,985 Machinery and equipment (a) (e) 44,116 42,732 Office furniture and equipment (c) (e) 869 1,005 Computer hardware and software (d) (e) 3,940 3,979 Leasehold improvements (e) 4,447 4,265 74,005 72,614 Less accumulated depreciation: Land — — Buildings (b) (11,220 ) (10,392 ) Machinery and equipment (a) (e) (33,727 ) (31,192 ) Office furniture and equipment (c) (e) (423 ) (546 ) Computer hardware and software (d) (e) (3,162 ) (3,289 ) Leasehold improvements (e) (2,076 ) (1,885 ) (50,608 ) (47,304 ) Property, plant and equipment—net $ 23,397 $ 25,310 (a) Included within machinery and equipment were assets under finance leases with costs of $4,193 and $2,275 and associated accumulated depreciation of $1,539 and $974 as of September 27, 2020 and December 29, 2019, respectively. The related depreciation expense for the three months ended September 27, 2020 and September 29, 2019 was $134 and $142, respectively. The related depreciation expense for the nine months ended September 27, 2020 and September 29, 2019 was $356 and $426, respectively. (b) Included within buildings are costs associated with Melbourne facility under finance leases of $9,082 and associated accumulated depreciation of $1,504 and $900 as of and 29, 2019, respectively. The related depreciation expense for the and was $201 and $201, respectively. The related depreciation expense for n and September 29, 2019 was $604 and $603, respectively. (c) September 27, 2020 December September 27, 2020 September 29, 2019 September 27, 2020 (d) Included within computer hardware and software were assets under finance leases with costs of $91 and associated accumulated depreciation of $73 and $51 as of September 27, 2020 December September 27, 2020 September 29, 2019 September 27, 2020 (e) Fully depreciated property, plant and equipment with cost of $1,466 and accumulated amortization of $1,463 was written off in the nine months ended September 27, 2020. September 27, 2020 December 29, 2019 Cost: Customer relationships $ 12,350 $ 12,350 Order backlog 6,990 6,990 Trade name 1,300 1,300 Non-compete agreements 360 360 21,000 21,000 Less accumulated amortization: Customer relationships (2,340 ) (1,414 ) Order backlog (6,990 ) (5,333 ) Trade name (1,300 ) (1,300 ) Non-compete agreements (341 ) (206 ) (10,971 ) (8,253 ) Intangible assets—net $ 10,029 $ 12,747 September 27, 2020 December 29, 2019 U.S. $ 3,009 $ 3,824 Mexico 7,020 8,923 Total $ 10,029 $ 12,747 September 27, 2020 December 29, 2019 U.S. $ 5,449 $ 5,449 Mexico 12,716 12,716 Total $ 18,165 $ 18,165 September 27, 2020 December 29, 2019 Payroll $ 7,515 $ 5,504 Customer related 6,347 2,185 Deferred revenue 5,915 — Vendor related 1,436 1,742 Professional services 644 612 Interest 330 860 Other 938 261 Total $ 23,125 $ 11,164
Finite-lived Intangible Assets Amortization Expense	2020 $ 328 2021 1,235 2022 1,235 2023 1,235 2024 1,235 2025 and thereafter 4,761 Total amortization $ 10,029
Consolidated Statements of Operations and Comprehensive Income (Loss)	Three months ended Nine months ended September 27, 2020 September 29, 2019 September 27, 2020 September 29, 2019 Long-term debt $ 1,012 $ 1,135 $ 3,080 $ 4,596 Revolving credit facility 415 597 1,449 1,813 Amortization of deferred financing fees 59 50 169 122 Amortization of debt issuance costs 245 705 723 1,178 Obligations under finance leases 195 192 575 640 Other interest 15 — 25 — Total $ 1,941 $ 2,679 $ 6,021 $ 8,349

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 27, 2020
Debt Disclosure [Abstract]
Summary of Revolving Credit and Long Term Debt Facilities	September 27, 2020 December 29, 2019 Revolving credit facility $ 34,356 $ 34,701 Term loans: Term loan A facility $ 37,813 $ 38,750 Less deferred debt issue costs (1,928 ) (2,286 ) Less unamortized discount on debt (1,184 ) (1,464 ) Total term loans $ 34,701 $ 35,000 Less current portion (2,188 ) (1,250 ) Long term portion $ 32,513 $ 33,750

Capital Stock (Tables)

Capital Stock (Tables)	9 Months Ended
	Sep. 27, 2020
Equity [Abstract]
Common Shares Issued and Outstanding	The issued and outstanding number of common shares included in shareholders’ equity consisted of the following: Number of shares $ Balance at December 29, 2019 $ 28,195,300 $ 508 New share issuance-vested stock awards 19,500 - Balance September 27, 2020 $ 28,214,800 $ 508
Summary of Stock Option Activity	A summary of stock option activity for the nine months ended September 27, 2020 is as follows: Number of options Weighted average exercise price Aggregate intrinsic value Weighted average remaining contractual term (years) Outstanding at December 29, 2019 2,344,374 $ 2.14 2,016 7.9 Options granted — — — — Options exercised — — — — Options forfeited — — — — Outstanding at September 27, 2020 2,344,374 2.14 2,049 7.2 Exercisable at September 27, 2020 1,088,140 1.55 2,024 6.5
Summary of Restricted Stock Units Activity	A summary of the RSU activity for the nine months ended September 27, 2020 is as follows: Outstanding RSU Weighted average stock price Weighted average remaining contractual term (years) Outstanding balance at December 29, 2019 348,000 $ 3.16 2.23 RSU granted 178,000 2.92 RSU vested and issued in common shares (19,500 ) 1.28 RSU forfeited (27,500 ) (1.28 ) Outstanding at September 27, 2020 479,000 3.14 2.18

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	9 Months Ended
	Sep. 27, 2020
Earnings Per Share [Abstract]
Schedule of Computation of Basic and Diluted Earnings Per Common Share	The following table details the weighted average number of common shares outstanding for the purposes of computing basic and diluted earnings per common share for the following periods: Three months ended Nine months ended (Number of common shares) September 27, 2020 September 29, 2019 September 27, 2020 September 29, 2019 Basic weighted average shares outstanding 28,214,800 28,057,763 28,207,943 24,954,875 Dilutive stock awards (a,b) 1,421,519 — 1,421,519 — Diluted weighted average shares outstanding 29,636,319 28,057,763 29,629,462 24,954,875 (a) For the three and nine months ended September 27, 2020, as a result of net income for the periods, dilutive earnings per share were calculated using the treasury stock method. The dilutive stock awards have been calculated as 1,421,519 for the three and nine months ended September 27, 2020, related to the outstanding unvested restricted stock units and incremental in-the-money stock options. (b) For the three and nine months ended September 29, 2019, as a result of net loss for the period, dilutive stock awards are not presented as this would be antidilutive. Had there been net income for the periods, the dilutive stock awards would have been calculated as 754,820 for the three and nine months ended September 29, 2019, related to outstanding unvested restricted stock units and incremental in-the-money stock options.

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 27, 2020
Segment Reporting [Abstract]
Segment Reporting Information, by Segment	In assessing the performance of the reportable segments, management attributes site revenue to the reportable segment that ships the product to the customer, irrespective of the product’s destination. Information about the reportable segments is as follows: Three months ended Nine months ended September 27, 2020 September 29, 2019 September 27, 2020 September 29, 2019 Revenue Mexico $ 61,625 $ 57,328 $ 183,791 $ 182,424 China — 8,092 4,206 22,541 U.S. 38,227 27,426 103,744 86,448 Total $ 99,852 $ 92,846 $ 291,741 $ 291,413 Intersegment revenue Mexico $ (136 ) $ (550 ) $ (2,706 ) $ (1,293 ) China — (3,580 ) (3,302 ) (7,687 ) U.S. (169 ) (34 ) (642 ) (166 ) Total $ (305 ) $ (4,164 ) $ (6,650 ) $ (9,146 ) Net external revenue Mexico $ 61,489 $ 56,778 $ 181,085 $ 181,131 China — 4,512 904 14,854 U.S. 38,058 27,392 103,102 86,282 Total segment revenue (which also equals consolidated revenue) $ 99,547 $ 88,682 $ 285,091 $ 282,267 Segment contribution Mexico $ 5,334 $ 4,815 $ 16,297 $ 15,456 China — 1,313 (2 ) 3,012 U.S. 2,521 2,191 7,753 5,378 Total $ 7,855 $ 8,319 $ 24,048 $ 23,846 Corporate expenses 3,725 5,962 14,377 17,227 Restructuring charges 871 6,454 525 8,624 Change in fair value of warrant liability 133 (858 ) 15 (919 ) Change in fair value of contingent consideration — — — (3,050 ) Unrealized foreign exchange gain on unsettled forward exchange contracts (262 ) — (720 ) — Interest expense 1,941 2,679 6,021 8,349 Income (loss) before income taxes $ 1,447 $ (5,918 ) $ 3,830 $ (6,385 ) Three months ended September 27, 2020 Mexico U.S. China Total Market Sector: Test and Measurement $ 147 $ 8,019 $ — $ 8,166 Retail and Payment Systems 10,295 — — 10,295 Telecom, Networking and Communications 2,755 2,021 — 4,776 Medical and Safety 7,072 4,198 — 11,270 Industrial IoT, Power and Clean Technology 29,629 7,387 — 37,016 Semiconductors 11,591 4,436 — 16,027 Avionics, Aerospace and Defense — 11,997 — 11,997 Segment Revenue 61,489 38,058 — 99,547 Revenue by category Mexico U.S. China Total Point in time $ 1,142 $ 3,697 $ — $ 4,839 Over time 60,347 34,361 — 94,708 Total Revenue 61,489 38,058 — 99,547 Three months ended September 29, 2019 Mexico U.S. China Total Market Sector: Test and Measurement $ 534 $ 8,287 $ — $ 8,821 Retail and Payment Systems 10,460 — — 10,460 Telecom, Networking and Communications 3,986 1,393 4,192 9,571 Medical and Safety 7,861 2,637 40 10,538 Industrial IoT, Power and Clean Technology 26,610 9,851 280 36,741 Semiconductors 7,327 — — 7,327 Avionics, Aerospace and Defense — 5,224 — 5,224 Segment Revenue 56,778 27,392 4,512 88,682 Revenue by category Mexico U.S. China Total Point in time $ 492 $ 2,223 $ 871 $ 3,586 Over time 56,286 25,169 3,641 85,096 Total Revenue 56,778 27,392 4,512 88,682 Nine months ended September 27, 2020 Mexico U.S. China Total Market Sector: Test and Measurement $ 724 $ 24,632 $ — $ 25,356 Retail and Payment Systems 29,368 — — 29,368 Telecom, Networking and Communications 7,554 9,035 714 17,303 Medical and Safety 23,498 9,693 130 33,321 Industrial IoT, Power and Clean Technology 88,102 23,217 60 111,379 Semiconductors 31,839 5,589 — 37,428 Avionics, Aerospace and Defense — 30,936 — 30,936 Segment Revenue 181,085 103,102 904 285,091 Revenue by category Mexico U.S. China Total Point in time $ 2,192 $ 6,117 $ 452 $ 8,761 Over time 178,893 96,985 452 276,330 Total Revenue 181,085 103,102 904 285,091 Nine months ended September 29, 2019 Mexico U.S. China Total Test and Measurement $ 4,968 $ 28,941 $ — $ 33,909 Retail and Payment Systems 35,538 — — 35,538 Telecom, Networking and Communications 11,493 5,784 11,076 28,353 Medical and Safety 24,362 9,393 481 34,236 Industrial IoT, Power and Clean Technology 84,389 25,122 3,297 112,808 Semiconductors 20,381 16 — 20,397 Avionics, Aerospace and Defense — 17,026 — 17,026 Segment Revenue 181,131 86,282 14,854 282,267 Revenue by category Mexico U.S. China Total Point in time $ 1,708 $ 5,321 $ 946 $ 7,975 Over time 179,423 80,961 13,908 274,292 Total Revenue 181,131 86,282 14,854 282,267 The following table contains geographic revenue based on our customer invoicing location, for the nine months ended September 27, 2020 and September 29, 2019. Three months ended Nine months ended September 27, 2020 September 29, 2019 September 27, 2020 September 29, 2019 U.S. $ 95,381 $ 83,276 $ 270,303 $ 260,210 Canada 4,166 3,916 13,834 13,686 China — 1,490 954 8,371 Total $ 99,547 $ 88,682 $ 285,091 $ 282,267
Schedule of Additions Including Acquired Through Capital Leases To Property, Plant and Equipment	The following table contains additions, including those acquired through capital leases, to property, plant and equipment for the three and nine months ended: Three months ended Nine months ended September 27, 2020 September 29, 2019 September 27, 2020 September 29, 2019 U.S. $ 676 $ 446 $ 1,595 $ 963 Mexico 763 859 1,249 2,212 China 3 98 5 152 Segment total 1,442 1,403 2,849 3,327 Corporate and other 5 — 8 24 Total $ 1,447 $ 1,403 $ 2,857 $ 3,351 Property, plant and operating lease right of use assets (a) September 27, 2020 December 29, 2019 U.S. $ 19,058 $ 16,904 Mexico 10,125 10,970 China — 670 Segment total 29,183 28,544 Corporate and other 111 96 Total $ 29,294 $ 28,640 Other long term segment assets (b) September 27, 2020 December 29, 2019 U.S. $ 8,458 $ 9,273 Mexico 20,291 22,179 China — — Segment total 28,749 31,452 Corporate and other 742 859 Total $ 29,491 $ 32,311 Total segment assets (a) September 27, 2020 December 29, 2019 U.S. $ 132,313 $ 112,789 Mexico 101,212 93,349 China — 6,694 Segment total 233,525 212,832 Corporate and other 552 547 Total $ 234,077 $ 213,379 (a) Property, plant and equipment information is based on the principal location of the asset. (b) Includes Goodwill, Intangible assets, deferred income taxes and deferred financing costs.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	9 Months Ended
	Sep. 27, 2020
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	Currency Buy/Sell Foreign Currency Amount Notional Contract Value in USD Mexican Peso Buy 180,000 MXN $ 7,212
Schedule of Derivative Rates at Fair Value	September 27, 2020 December 29, 2019 Average USD:PESO contract rate 24.96 N/A Average USD:PESO mark-to-market rate 22.69 N/A

Restructuring Charges (Tables)

Restructuring Charges (Tables)	9 Months Ended
	Sep. 27, 2020
Restructuring And Related Activities [Abstract]
Schedule of Restructuring Liability	Termination benefits and other exit costs Balance as at December 29, 2019 $ 1,597 Involuntary employee termination benefits 1,278 Provisions reversed unutilized (753 ) Payments—Dongguan severance and other exit cost payment (549 ) Payments— (U.S., Canada and Mexico) (1,209 ) At September 27, 2020 $ 364

Business and Basis of Present_2

Business and Basis of Presentation - Additional Information (Details) $ in Thousands	9 Months Ended
	Sep. 27, 2020USD ($)Line	Dec. 29, 2020USD ($)	Dec. 29, 2019USD ($)
PNC Bank [Member] | Revolving Credit Facility [Member]
Business And Nature Of Presentation [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity	$ 30,464		$ 21,644
PNC Bank [Member] | Scenario Forecast [Member] | Revolving Credit Facility [Member]
Business And Nature Of Presentation [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity		$ 21,644
Minimum [Member]
Business And Nature Of Presentation [Line Items]
Number of manufacturing and assembly lines | Line	50

Interim Consolidated Financia_3

Interim Consolidated Financial Statement Details - Consolidated Balance Sheets (Details) - USD ($) $ in Thousands		9 Months Ended	12 Months Ended
		Sep. 27, 2020	Dec. 29, 2019
Condensed Balance Sheet Statements Captions [Line Items]
Trade accounts receivable		$ 75,000	$ 71,113
Other receivables		731	1,098
Allowance for doubtful accounts		(2,325)	(2,292)
Total		73,406	69,919
Opening		26,271	20,405
Contract assets additions		276,330	350,709
Contract assets invoiced		(259,865)	(344,843)
Ending		42,736	26,271
Raw materials		51,783	48,067
Parts and other		292	586
Provision for obsolescence		(538)	(827)
Total		51,537	47,826
Property, plant and equipment		74,005	72,614
Accumulated depreciation, property, plant and equipment		(50,608)	(47,304)
Property, plant and equipment—net		23,397	25,310
Intangible assets		21,000	21,000
Intangible assets, accumulated amortization		(10,971)	(8,253)
Total amortization		10,029	12,747
Goodwill		18,165	18,165
Payroll		7,515	5,504
Deferred revenue		5,915	0
Professional services		644	612
Interest		330	860
Total		23,125	11,164
Customer Related [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Other accrued liabilities		6,347	2,185
Vendor Related [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Other accrued liabilities		1,436	1,742
Other Accrued Liabilities [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Other accrued liabilities		938	261
US [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Total amortization		3,009	3,824
Goodwill		5,449	5,449
Mexico [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Total amortization		7,020	8,923
Goodwill		12,716	12,716
Customer Relationships [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Intangible assets		12,350	12,350
Intangible assets, accumulated amortization		(2,340)	(1,414)
Order or Production Backlog [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Intangible assets		6,990	6,990
Intangible assets, accumulated amortization		(6,990)	(5,333)
Trade Names [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Intangible assets		1,300	1,300
Intangible assets, accumulated amortization		(1,300)	(1,300)
Noncompete Agreements [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Intangible assets		360	360
Intangible assets, accumulated amortization		(341)	(206)
Land [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Property, plant and equipment		1,648	1,648
Building [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Property, plant and equipment	[1]	18,985	18,985
Accumulated depreciation, property, plant and equipment	[1]	(11,220)	(10,392)
Machinery and Equipment [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Property, plant and equipment	[2],[3]	44,116	42,732
Accumulated depreciation, property, plant and equipment	[2],[3]	(33,727)	(31,192)
Furniture and Fixtures [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Property, plant and equipment	[2],[4]	869	1,005
Accumulated depreciation, property, plant and equipment	[2],[4]	(423)	(546)
Computer Equipment [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Property, plant and equipment	[2],[5]	3,940	3,979
Accumulated depreciation, property, plant and equipment	[2],[5]	(3,162)	(3,289)
Leasehold Improvements [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Property, plant and equipment	[2]	4,447	4,265
Accumulated depreciation, property, plant and equipment	[2]	$ (2,076)	$ (1,885)
[1]	Included within buildings are costs associated with Melbourne facility under finance leases of $9,082 and associated accumulated depreciation of $1,504 and $900 as of and 29, 2019, respectively. The related depreciation expense for the and was $201 and $201, respectively. The related depreciation expense for n and September 29, 2019 was $604 and $603, respectively.
[2]	Fully depreciated property, plant and equipment with cost of $1,466 and accumulated amortization of $1,463 was written off in the nine months ended September 27, 2020.
[3]	Included within machinery and equipment were assets under finance leases with costs of $4,193 and $2,275 and associated accumulated depreciation of $1,539 and $974 as of September 27, 2020 and December 29, 2019, respectively. The related depreciation expense for the three months ended September 27, 2020 and September 29, 2019 was $134 and $142, respectively. The related depreciation expense for the nine months ended September 27, 2020 and September 29, 2019 was $356 and $426, respectively.
[4]	Included within office furniture and equipment were assets under finance leases with costs of $307 and $307 and associated accumulated depreciation of $101 and $52 as of September 27, 2020 December September 27, 2020 September 29, 2019 September 27, 2020
[5]	Included within computer hardware and software were assets under finance leases with costs of $91 and associated accumulated depreciation of $73 and $51 as of September 27, 2020 December September 27, 2020 September 29, 2019 September 27, 2020

Interim Consolidated Financia_4

Interim Consolidated Financial Statement Details - Consolidated Balance Sheets (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019	Dec. 29, 2019
Condensed Balance Sheet Statements Captions [Line Items]
Depreciation of property, plant and equipment			$ 4,767	$ 4,902
Machinery and Equipment [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Capital Leased Assets, Gross, Total	$ 4,193		4,193		$ 2,275
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	1,539		1,539		974
Machinery and Equipment [Member] | Dongguan Facility Closure [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Property, Plant and Equipment, Transfers and Changes			1,466
Accumulated Depreciation, Depletion and Amortization, Write Down			1,463
Machinery and Equipment [Member] | Assets Under Finance Lease [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Depreciation of property, plant and equipment	134	$ 142	356	426
Building and Building Improvements [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Capital Leased Assets, Gross, Total	9,082		9,082		9,082
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	1,504		1,504		900
Building and Building Improvements [Member] | Assets Under Finance Lease [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Depreciation of property, plant and equipment	201	201	604	603
Furniture and Fixtures [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Capital Leased Assets, Gross, Total	307		307		307
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	101		101		52
Furniture and Fixtures [Member] | Assets Under Finance Lease [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Depreciation of property, plant and equipment	16	9	49	29
Computer Equipment [Member] | Assets Under Finance Lease [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Capital Leased Assets, Gross, Total	91		91		91
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	73		73		$ 51
Depreciation of property, plant and equipment	$ 7	$ 8	$ 22	$ 23

Interim Consolidated Financia_5

Interim Consolidated Financial Statement Details - Additional Information (Details) - USD ($)	9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Dec. 29, 2019
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]
Amortization of intangible assets	$ 2,718,000	$ 5,532,000
Goodwill	18,165,000		$ 18,165,000
Deferred revenue	5,915,000		0
Deferred revenue, revenue recognized	899,000
Accounts receivable balances associated with the deferred revenue	$ 5,915,000		$ 0

Interim Consolidated Financia_6

Interim Consolidated Financial Statement Details - Finite-lived Intangible Assets Amortization Expense (Details) - USD ($) $ in Thousands	Sep. 27, 2020	Dec. 29, 2019
Finite Lived Intangible Assets Future Amortization Expense [Abstract]
2020	$ 328
2021	1,235
2022	1,235
2023	1,235
2024	1,235
2025 and thereafter	4,761
Total amortization	$ 10,029	$ 12,747

Interim Consolidated Financia_7

Interim Consolidated Financial Statement Details - Consolidated Statements of Operations and Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019
Condensed Income Statements Captions [Line Items]
Long-term debt	$ 1,012	$ 1,135	$ 3,080	$ 4,596
Amortization of deferred financing fees	59	50	169	122
Amortization of debt issuance costs	245	705	723	1,178
Obligations under finance leases	195	192	575	640
Other interest	15		25
Total	1,941	2,679	6,021	8,349
Revolving Credit Facility [Member]
Condensed Income Statements Captions [Line Items]
Line of credit facility, periodic payment, interest	$ 415	$ 597	$ 1,449	$ 1,813

Debt - Summary of Revolving Cre

Debt - Summary of Revolving Credit and Long Term Debt Facilities (Details) - USD ($) $ in Thousands	Sep. 27, 2020	Dec. 29, 2019
Debt Disclosure [Abstract]
Revolving credit facility	$ 34,356	$ 34,701
Term loans:
Term loan A facility	37,813	38,750
Less deferred debt issue costs	(1,928)	(2,286)
Less unamortized discount on debt	(1,184)	(1,464)
Total term loans	34,701	35,000
Less current portion	(2,188)	(1,250)
Long term portion	$ 32,513	$ 33,750

Debt - Additional Information (

Debt - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	Jun. 26, 2020	Aug. 08, 2019	Sep. 26, 2021	Sep. 27, 2020	Sep. 27, 2020	Dec. 29, 2020	Sep. 25, 2020	Dec. 29, 2019	Nov. 08, 2018
Debt Disclosure [Line Items]
Line of credit				$ 34,356	$ 34,356			$ 34,701
Debt Instrument, Unamortized Discount, Total				1,184	1,184			1,464
PNC and TCW Amendment [Member]
Debt Disclosure [Line Items]
Non-recurring labor costs and temporary employee bonuses	$ 1,200
Restructuring and severance charges, accruals and reserves	1,000
Increase in aggregate principal amount of indebtedness	$ 3,750
PNC Fifth Amendment [Member]
Debt Disclosure [Line Items]
Non-recurring labor costs and temporary employee bonuses					$ 1,500
Line of Credit Facility, Maximum Borrowing Capacity							$ 2,000
TCW Sixth Amendment [Member]
Debt Disclosure [Line Items]
Non-recurring labor costs and temporary employee bonuses				1,500
PNC Agreement and Financing Agreement [Member] | Scenario Forecast [Member]
Debt Disclosure [Line Items]
Percentage of reduction in earnings before interest, income taxes, depreciation and amortization			14.00%
PNC Bank [Member] | Foreign Line of Credit [Member]
Debt Disclosure [Line Items]
Maturity date					Nov. 8, 2023
PNC Bank [Member] | Foreign Line of Credit [Member] | Base Rate [Member] | Minimum [Member]
Debt Disclosure [Line Items]
Debt Instrument, Basis Spread on Variable Rate					0.50%
PNC Bank [Member] | Foreign Line of Credit [Member] | Base Rate [Member] | Maximum [Member]
Debt Disclosure [Line Items]
Debt Instrument, Basis Spread on Variable Rate					1.00%
PNC Bank [Member] | Foreign Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Disclosure [Line Items]
Debt Instrument, Basis Spread on Variable Rate					1.50%
PNC Bank [Member] | Foreign Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Disclosure [Line Items]
Debt Instrument, Basis Spread on Variable Rate					2.00%
PNC Bank [Member] | Revolving Credit Facility [Member]
Debt Disclosure [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity								65,000
Line of Credit Facility, Remaining Borrowing Capacity				30,464	$ 30,464			21,644
Line of credit				34,356	34,356			34,701
PNC Bank [Member] | Revolving Credit Facility [Member] | Scenario Forecast [Member]
Debt Disclosure [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity						$ 21,644
TCW Asset Management Company, LLC [Member]
Debt Disclosure [Line Items]
Debt Issuance Cost, Gross, Noncurrent				1,928	1,928			2,286
Debt Instrument, Unamortized Discount, Total				$ 1,184	$ 1,184			1,464
Class of Warrant or Right, Outstanding (in shares)									504,735
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)				511,949	511,949
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)									$ 0.01
Warrants and Rights Outstanding				$ 1,746	$ 1,746			$ 1,730	$ 1,898
Share Price (in dollars per share)				$ 3.41	$ 3.41			$ 3.38
TCW Asset Management Company, LLC [Member] | Rights Offering and the Registered Direct Offering in June 2019 [Member]
Debt Disclosure [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)				7,214	7,214
TCW Asset Management Company, LLC [Member] | Term Loan [Member]
Debt Disclosure [Line Items]
Additional Prepayment Fee After Closing Date, Percent, First Twelve Months				3.00%	3.00%
Additional Prepayment Fee After Closing Date, Percent, Year Two				2.00%	2.00%
Additional Prepayment Fee After Closing Date, Percent, Year Three				1.00%	1.00%
TCW Asset Management Company, LLC [Member] | Term Loan A [Member]
Debt Disclosure [Line Items]
Maturity date					Nov. 8, 2023
Line of credit				$ 37,813	$ 37,813			$ 38,750
TCW Asset Management Company, LLC [Member] | London Interbank Offered Rate (LIBOR) [Member] | Financing Agreement Through June 30, 2020 [Member]
Debt Disclosure [Line Items]
Debt Instrument, Basis Spread on Variable Rate		8.75%
TCW Asset Management Company, LLC [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] | Financing Agreement Through June 30, 2020 [Member]
Debt Disclosure [Line Items]
Debt Instrument, Basis Spread on Variable Rate		7.25%
TCW Asset Management Company, LLC [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] | Financing Agreement Through June 30, 2020 [Member]
Debt Disclosure [Line Items]
Debt Instrument, Basis Spread on Variable Rate		8.75%

Capital Stock - Common Shares I

Capital Stock - Common Shares Issued and Outstanding (Details) $ in Thousands	9 Months Ended
	Sep. 27, 2020USD ($)shares
Equity [Abstract]
Balance, Number of shares	28,195,300
New share issuance-vested stock awards	19,500
Balance, Number of shares	28,214,800
Balance | $	$ 508
Balance | $	$ 508

Capital Stock - Summary of Stoc

Capital Stock - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 27, 2020	Dec. 29, 2019
Equity [Abstract]
Number of options, Outstanding	2,344,374
Number of options, Outstanding	2,344,374	2,344,374
Number of options, Exercisable	1,088,140
Outstanding, Weighted average exercise price	$ 2.14
Outstanding, Weighted average exercise price	2.14	$ 2.14
Exercisable, Weighted average exercise price	$ 1.55
Balance, Aggregate intrinsic value	$ 2,049	$ 2,016
Exercisable, Aggregate intrinsic value	$ 2,024
Outstanding, Weighted average remaining contractual term (Year)	7 years 2 months 12 days	7 years 10 months 24 days
Exercisable, Weighted average remaining contractual term (Year)	6 years 6 months

Capital Stock - Additional Info

Capital Stock - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019
Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 57	$ 57	$ 172	$ 120
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 101	$ 296	$ 303	$ 418
RSU granted			178,000

Capital Stock - Summary of Rest

Capital Stock - Summary of Restricted Stock Units Activity (Details) - Restricted Stock Units (RSUs) [Member] - $ / shares	9 Months Ended	12 Months Ended
	Sep. 27, 2020	Dec. 29, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Outstanding balance, Outstanding RSU	348,000
RSU granted, Outstanding RSU	178,000
RSU vested and issued in common shares, Outstanding RSU	(19,500)
RSU forfeited, Outstanding RSU	(27,500)
Outstanding balance, Outstanding RSU	479,000	348,000
Outstanding balance, Weighted average stock price	$ 3.16
RSU granted, Weighted average stock price	2.92
RSU vested and issued in common shares, Weighted average stock price	1.28
RSU forfeited, Weighted average stock price	(1.28)
Outstanding balance, Weighted average stock price	$ 3.14	$ 3.16
Outstanding balance, Weighted average remaining contractual term (years)	2 years 2 months 4 days	2 years 2 months 23 days

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019
Income Tax Disclosure [Abstract]
Current income tax expense	$ 286	$ (103)	$ 872	$ 592
Deferred income tax (recovery) expense	$ (82)	$ (81)	$ (15)	$ 14

Earnings Per Common Share - Sch

Earnings Per Common Share - Schedule of Computation of Basic and Diluted Earnings Per Common Share (Details) - shares		3 Months Ended		9 Months Ended
		Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019
Earnings Per Share [Abstract]
Basic weighted average shares outstanding		28,214,800	28,057,763	28,207,943	24,954,875
Dilutive stock awards	[1],[2]	1,421,519		1,421,519
Diluted weighted average shares outstanding		29,636,319	28,057,763	29,629,462	24,954,875
[1]	For the three and nine months ended September 27, 2020, as a result of net income for the periods, dilutive earnings per share were calculated using the treasury stock method. The dilutive stock awards have been calculated as 1,421,519 for the three and nine months ended September 27, 2020, related to the outstanding unvested restricted stock units and incremental in-the-money stock options.
[2]	For the three and nine months ended September 29, 2019, as a result of net loss for the period, dilutive stock awards are not presented as this would be antidilutive. Had there been net income for the periods, the dilutive stock awards would have been calculated as 754,820 for the three and nine months ended September 29, 2019, related to outstanding unvested restricted stock units and incremental in-the-money stock options.

Earnings Per Common Share - S_2

Earnings Per Common Share - Schedule of Computation of Basic and Diluted Earnings Per Common Share (Parenthetical) (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	1,421,519	754,820	1,421,519	754,820

Segmented Information - Segment

Segmented Information - Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019
Segment Reporting Information [Line Items]
Revenue	$ 99,547	$ 88,682	$ 285,091	$ 282,267
Segment contribution	11,102	8,906	31,427	26,527
Corporate expenses	3,725	5,962	14,377	17,227
Restructuring charges	871	6,454	525	8,624
Change in fair value of warrant liability	133	(858)	15	(919)
Change in fair value of contingent consideration				(3,050)
Unrealized foreign exchange gain on unsettled forward exchange contracts	(262)		(720)
Interest expense (note 3)	1,941	2,679	6,021	8,349
Income (loss) before income taxes	1,447	(5,918)	3,830	(6,385)
Customers by Invoice Location [Member]
Segment Reporting Information [Line Items]
Revenue	99,547	88,682	285,091	282,267
Point in Time [Member]
Segment Reporting Information [Line Items]
Revenue	4,839	3,586	8,761	7,975
Over Time [Member]
Segment Reporting Information [Line Items]
Revenue	94,708	85,096	276,330	274,292
Test and Measurement [Member]
Segment Reporting Information [Line Items]
Revenue	8,166	8,821	25,356	33,909
Retail and Payment Systems [Member]
Segment Reporting Information [Line Items]
Revenue	10,295	10,460	29,368	35,538
Telecom, Networking, and Communications [Member]
Segment Reporting Information [Line Items]
Revenue	4,776	9,571	17,303	28,353
Medical and Safety [Member]
Segment Reporting Information [Line Items]
Revenue	11,270	10,538	33,321	34,236
Industrial IoT, Power and Clean Technology [Member]
Segment Reporting Information [Line Items]
Revenue	37,016	36,741	111,379	112,808
Semiconductor [Member]
Segment Reporting Information [Line Items]
Revenue	16,027	7,327	37,428	20,397
Avionics, Aerospace and Defense [Member]
Segment Reporting Information [Line Items]
Revenue	11,997	5,224	30,936	17,026
Mexico [Member]
Segment Reporting Information [Line Items]
Revenue	61,489	56,778	181,085	181,131
Mexico [Member] | Point in Time [Member]
Segment Reporting Information [Line Items]
Revenue	1,142	492	2,192	1,708
Mexico [Member] | Over Time [Member]
Segment Reporting Information [Line Items]
Revenue	60,347	56,286	178,893	179,423
Mexico [Member] | Test and Measurement [Member]
Segment Reporting Information [Line Items]
Revenue	147	534	724	4,968
Mexico [Member] | Retail and Payment Systems [Member]
Segment Reporting Information [Line Items]
Revenue	10,295	10,460	29,368	35,538
Mexico [Member] | Telecom, Networking, and Communications [Member]
Segment Reporting Information [Line Items]
Revenue	2,755	3,986	7,554	11,493
Mexico [Member] | Medical and Safety [Member]
Segment Reporting Information [Line Items]
Revenue	7,072	7,861	23,498	24,362
Mexico [Member] | Industrial IoT, Power and Clean Technology [Member]
Segment Reporting Information [Line Items]
Revenue	29,629	26,610	88,102	84,389
Mexico [Member] | Semiconductor [Member]
Segment Reporting Information [Line Items]
Revenue	11,591	7,327	31,839	20,381
China [Member]
Segment Reporting Information [Line Items]
Revenue		4,512	904	14,854
China [Member] | Customers by Invoice Location [Member]
Segment Reporting Information [Line Items]
Revenue		1,490	954	8,371
China [Member] | Point in Time [Member]
Segment Reporting Information [Line Items]
Revenue		871	452	946
China [Member] | Over Time [Member]
Segment Reporting Information [Line Items]
Revenue		3,641	452	13,908
China [Member] | Telecom, Networking, and Communications [Member]
Segment Reporting Information [Line Items]
Revenue		4,192	714	11,076
China [Member] | Medical and Safety [Member]
Segment Reporting Information [Line Items]
Revenue		40	130	481
China [Member] | Industrial IoT, Power and Clean Technology [Member]
Segment Reporting Information [Line Items]
Revenue		280	60	3,297
US [Member]
Segment Reporting Information [Line Items]
Revenue	38,058	27,392	103,102	86,282
US [Member] | Customers by Invoice Location [Member]
Segment Reporting Information [Line Items]
Revenue	95,381	83,276	270,303	260,210
US [Member] | Point in Time [Member]
Segment Reporting Information [Line Items]
Revenue	3,697	2,223	6,117	5,321
US [Member] | Over Time [Member]
Segment Reporting Information [Line Items]
Revenue	34,361	25,169	96,985	80,961
US [Member] | Test and Measurement [Member]
Segment Reporting Information [Line Items]
Revenue	8,019	8,287	24,632	28,941
US [Member] | Telecom, Networking, and Communications [Member]
Segment Reporting Information [Line Items]
Revenue	2,021	1,393	9,035	5,784
US [Member] | Medical and Safety [Member]
Segment Reporting Information [Line Items]
Revenue	4,198	2,637	9,693	9,393
US [Member] | Industrial IoT, Power and Clean Technology [Member]
Segment Reporting Information [Line Items]
Revenue	7,387	9,851	23,217	25,122
US [Member] | Semiconductor [Member]
Segment Reporting Information [Line Items]
Revenue	4,436		5,589	16
US [Member] | Avionics, Aerospace and Defense [Member]
Segment Reporting Information [Line Items]
Revenue	11,997	5,224	30,936	17,026
CANADA | Customers by Invoice Location [Member]
Segment Reporting Information [Line Items]
Revenue	4,166	3,916	13,834	13,686
Reportable Geographical Components [Member]
Segment Reporting Information [Line Items]
Revenue	99,852	92,846	291,741	291,413
Segment contribution	7,855	8,319	24,048	23,846
Reportable Geographical Components [Member] | Mexico [Member]
Segment Reporting Information [Line Items]
Revenue	61,625	57,328	183,791	182,424
Segment contribution	5,334	4,815	16,297	15,456
Reportable Geographical Components [Member] | China [Member]
Segment Reporting Information [Line Items]
Revenue		8,092	4,206	22,541
Segment contribution		1,313	(2)	3,012
Reportable Geographical Components [Member] | US [Member]
Segment Reporting Information [Line Items]
Revenue	38,227	27,426	103,744	86,448
Segment contribution	2,521	2,191	7,753	5,378
Intersegment Revenue [Member]
Segment Reporting Information [Line Items]
Revenue	(305)	(4,164)	(6,650)	(9,146)
Intersegment Revenue [Member] | Mexico [Member]
Segment Reporting Information [Line Items]
Revenue	(136)	(550)	(2,706)	(1,293)
Intersegment Revenue [Member] | China [Member]
Segment Reporting Information [Line Items]
Revenue		(3,580)	(3,302)	(7,687)
Intersegment Revenue [Member] | US [Member]
Segment Reporting Information [Line Items]
Revenue	$ (169)	$ (34)	$ (642)	$ (166)

Segmented Information - Schedul

Segmented Information - Schedule of Additions Including Acquired Through Capital Leases To Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019	Dec. 29, 2019
Segment Reporting Information [Line Items]
Additions to property, plant and equipment	$ 1,447	$ 1,403	$ 2,857	$ 3,351
Property, plant and operating lease right of use assets	29,294		29,294		$ 28,640
Other long term segment assets	29,491		29,491		32,311
Total segment assets	234,077		234,077		213,379
Reportable Geographical Components [Member]
Segment Reporting Information [Line Items]
Additions to property, plant and equipment	1,442	1,403	2,849	3,327
Property, plant and operating lease right of use assets	29,183		29,183		28,544
Other long term segment assets	28,749		28,749		31,452
Total segment assets	233,525		233,525		212,832
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Additions to property, plant and equipment	5		8	24
Property, plant and operating lease right of use assets	111		111		96
Other long term segment assets	742		742		859
Total segment assets	552		552		547
US [Member] | Reportable Geographical Components [Member]
Segment Reporting Information [Line Items]
Additions to property, plant and equipment	676	446	1,595	963
Property, plant and operating lease right of use assets	19,058		19,058		16,904
Other long term segment assets	8,458		8,458		9,273
Total segment assets	132,313		132,313		112,789
Mexico [Member] | Reportable Geographical Components [Member]
Segment Reporting Information [Line Items]
Additions to property, plant and equipment	763	859	1,249	2,212
Property, plant and operating lease right of use assets	10,125		10,125		10,970
Other long term segment assets	20,291		20,291		22,179
Total segment assets	101,212		101,212		93,349
China [Member] | Reportable Geographical Components [Member]
Segment Reporting Information [Line Items]
Additions to property, plant and equipment	$ 3	$ 98	$ 5	$ 152
Property, plant and operating lease right of use assets					670
Total segment assets					$ 6,694

Segmented Information - Additio

Segmented Information - Additional Information (Details) - Customer Concentration Risk [Member] - Customer	9 Months Ended		12 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Dec. 29, 2019
Revenue Benchmark [Member]
Segment Reporting Information [Line Items]
Number of Major Customers	2	1
Concentration Risk, Percentage	22.70%	13.40%
Accounts Receivable [Member]
Segment Reporting Information [Line Items]
Number of Major Customers	0		1

Derivative Financial Instrume_3

Derivative Financial Instruments - Additional Information (Details) $ in Thousands	9 Months Ended
	Sep. 27, 2020USD ($)	Sep. 29, 2019USD ($)	Sep. 27, 2020MXN ($)	Sep. 29, 2019MXN ($)
Forward foreign exchange contracts outstanding amount			$ 180,000	$ 0
Derivative asset, current	$ 720	$ 0
Derivative liability, current	0	0
Cost of Sales [Member]
Unrealized Gain (Loss) on Derivatives	$ 720	$ 0

Derivative Financial Instrume_4

Derivative Financial Instruments - Foreign Currency Forward Contracts (Details) $ in Thousands	9 Months Ended
	Sep. 27, 2020USD ($)	Sep. 27, 2020MXN ($)	Sep. 29, 2019MXN ($)
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Buy/Sell	Buy
Foreign Currency Amount		$ 180,000	$ 0
Notional Contract Value in USD	$ 7,212

Derivative Financial Instrume_5

Derivative Financial Instruments - Average USD Fair Value Measurements for Contracts Rates (Details)	Sep. 27, 2020
USD:PESO Contract Rate [Member]
Contract rate	24.96%
USD:PESO Mark-to-market Rate [Member]
Mark-to-market rate	22.69%

Restructuring Charges - Additio

Restructuring Charges - Additional Information (Details) $ in Thousands	1 Months Ended		3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 31, 2020Employee	Sep. 30, 2019Employee	Sep. 27, 2020USD ($)	Sep. 29, 2019USD ($)	Sep. 27, 2020USD ($)	Sep. 29, 2019USD ($)	Dec. 29, 2019USD ($)
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | Employee	307
Restructuring Charges, Total			$ 1,163
Restructuring and Related Cost, Expected Cost Remaining			194		$ 194
Restructuring Charges (Recoveries)			871	$ 6,454	525	$ 8,624
Dongguan Facility Closure [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | Employee		137
Restructuring Charges, Total							$ 5,000
Restructuring and Related Cost, Expected Cost Remaining			$ 17		17
Restructuring Charges (Recoveries)					$ (753)
Mexico [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | Employee	287
US [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | Employee	20

Restructuring Charges - Schedul

Restructuring Charges - Schedule of Restructuring Liability (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 27, 2020	Sep. 27, 2020
Restructuring Cost And Reserve [Line Items]
Balance		$ 1,597
Restructuring Charges, Total	$ 1,163
Provisions reversed unutilized		(753)
Balance	$ 364	364
One-time Termination Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Charges, Total		1,278
Dongguan Severance and Other Exit Cost Payment [Member]
Restructuring Cost And Reserve [Line Items]
Payments		(549)
U.S., Canada and Mexico [Member]
Restructuring Cost And Reserve [Line Items]
Payments		$ (1,209)

Commitments - Additional Inform

Commitments - Additional Information (Details) - USD ($)	Sep. 27, 2020	Dec. 29, 2019
Open Non-cancellable Purchase Orders for Raw Materials [Member]
Loss Contingencies [Line Items]
Purchase Obligation, to be Paid, Year One	$ 37,708,000	$ 25,866,000
Indemnification Agreement [Member]
Loss Contingencies [Line Items]
Loss contingency accrual	$ 0	$ 0