Unique Fabricating (UFABQ) 10-K 8 Mar 18 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Mar. 02, 2018	Jul. 02, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	Unique Fabricating, Inc.
Entity Central Index Key	1,617,669
Document Type	10-K
Document Period End Date	Dec. 31, 2017
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		9,766,563
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Entity Well-Known Seasoned Issuer	No
Entity Voluntary Filer	No
Entity Public Float			$ 64.1

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($)	Dec. 31, 2017	Jan. 01, 2017
Current Assets
Cash and cash equivalents	$ 1,430,937	$ 705,535
Accounts receivable – net	27,203,296	26,887,945
Inventory – net	16,330,084	16,731,608
Prepaid expenses and other current assets:
Prepaid expenses and other	3,962,012	2,087,069
Refundable taxes	646,253	783,139
Total current assets	49,572,582	47,195,296
Property, Plant, and Equipment – Net	22,975,401	21,197,922
Goodwill	28,871,179	28,871,179
Intangible Assets	19,635,782	23,758,342
Other assets
Investments – at cost	1,054,120	1,054,120
Deposits and other assets	353,719	266,369
Deferred tax asset	342,552	193,577
Total assets	122,805,335	122,536,805
Current Liabilities
Accounts payable	11,708,175	13,451,816
Current maturities of long-term debt	3,799,998	2,405,446
Income taxes payable	348,910	610,825
Accrued compensation	2,840,559	2,734,155
Other accrued liabilities	1,027,489	1,065,740
Other liabilities	0	168,880
Total current liabilities	19,725,131	20,436,862
Long-term debt – net of current portion	27,288,846	28,029,041
Line of credit	22,476,525	20,176,058
Other long-term liabilities
Deferred tax liability	2,432,754	3,836,281
Total liabilities	71,923,256	72,478,242
Stockholders’ Equity
Common stock, $0.001 par value – 15,000,000 shares authorized and 9,757,563 and 9,719,772 issued and outstanding at December 31, 2017 and January 1, 2017, respectively	9,758	9,720
Additional paid-in-capital	45,712,568	45,525,237
Retained earnings	5,159,753	4,523,606
Total stockholders’ equity	50,882,079	50,058,563
Total liabilities and stockholders’ equity	$ 122,805,335	$ 122,536,805

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2017	Jan. 01, 2017
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	15,000,000	15,000,000
Common stock, shares issued (in shares)	9,757,563	9,719,772
Common stock, shares outstanding (in shares)	9,757,563	9,719,772

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Income Statement [Abstract]
Net Sales	$ 175,287,982	$ 170,462,953	$ 143,309,634
Cost of Sales	135,234,448	130,918,486	109,488,101
Gross Profit	40,053,534	39,544,467	33,821,533
Selling, General, and Administrative Expenses	29,766,864	27,524,453	23,372,201
Restructuring Expenses	0	35,054	374,230
Operating Income	10,286,670	11,984,960	10,075,102
Non-operating Income (Expense)
Investment income	0	0	230
Other income	78,805	91,755	23,021
Interest expense	(2,745,904)	(2,134,976)	(2,755,091)
Total non-operating expense	(2,667,099)	(2,043,221)	(2,731,840)
Income – Before income taxes	7,619,571	9,941,739	7,343,262
Income Tax Expense	1,132,880	3,257,619	2,314,324
Net Income	$ 6,486,691	$ 6,684,120	$ 5,028,938
Net Income per share
Basic (in dollars per share)	$ 0.67	$ 0.69	$ 0.62
Diluted (in dollars per share)	0.66	0.68	0.60
Cash dividends declared per share (in dollars per share)	$ 0.60	$ 0.6	$ 0.30

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($)	Total	Common Stock	Additional Paid-In Capital	Retained Earnings
Beginning balance (in shares) at Jan. 04, 2015	4,324,599
Beginning balance at Jan. 04, 2015	$ 16,591,935	$ 4,325	$ 13,723,456	$ 2,864,154
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	5,028,938			5,028,938
Stock option expense	205,845		205,845
Reduction for accretion on redeemable stock	$ (1,364,031)			(1,364,031)
Reclass of redeemable common stock to common stock and additional paid-in capital (in shares)	2,415,399
Reclass of redeemable common stock to common stock and additional paid-in capital	$ 7,810,007	2,415	7,807,592
Exercise of warrants and options for common stock (in shares)	149,362
Exercise of warrants and options for common stock	$ 397,071	149	396,922
Issuance of common stock pursuant to an initial public offering (in shares)	2,702,500
Issuance of common stock pursuant to an initial public offering	$ 25,673,750	2,703	25,671,047
Common stock initial public offering issuance costs and underwriter fees	(3,452,674)		(3,452,674)
Cash dividends paid	$ (2,877,717)			(2,877,717)
Ending balance (in shares) at Jan. 03, 2016	9,591,860
Ending balance at Jan. 03, 2016	$ 48,013,124	9,592	44,352,188	3,651,344
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	6,684,120			6,684,120
Stock option expense	$ 166,476		166,476
Exercise of warrants and options for common stock (in shares)	57,115
Exercise of warrants and options for common stock	$ 115,975	57	115,918
Common stock issued for purchase of Intasco USA, Inc. (in shares)	70,797
Common stock issued for purchase of Intasco USA, Inc.	$ 890,726	71	890,655
Cash dividends paid	$ (5,811,858)			(5,811,858)
Ending balance (in shares) at Jan. 01, 2017	9,719,772
Ending balance at Jan. 01, 2017	$ 50,058,563	9,720	45,525,237	4,523,606
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	6,486,691			6,486,691
Stock option expense	$ 150,368		150,368
Exercise of warrants and options for common stock (in shares)	37,791
Exercise of warrants and options for common stock	$ 37,001	38	36,963
Cash dividends paid	$ (5,850,544)			(5,850,544)
Ending balance (in shares) at Dec. 31, 2017	9,757,563
Ending balance at Dec. 31, 2017	$ 50,882,079	$ 9,758	$ 45,712,568	$ 5,159,753

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Cash Flows from Operating Activities
Net income	$ 6,486,691	$ 6,684,120	$ 5,028,938
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,319,975	5,501,674	3,903,429
Amortization of debt issuance costs	148,948	127,556	269,629
Loss (gain) on sale of assets	63,013	(126,631)	48,135
Loss on extinguishment of debt	0	60,202	386,552
Bad debt adjustment	128,475	(274,364)	(36,811)
(Gain) loss on derivative instruments	(228,387)	22,193	(39,638)
Stock option expense	150,368	166,476	205,845
Deferred income taxes	(1,552,502)	(1,165,649)	(496,427)
Changes in operating assets and liabilities that provided (used) cash:
Accounts receivable	(443,826)	(3,987,313)	(694,902)
Inventory	401,524	339,784	(2,981,751)
Prepaid expenses and other assets	(1,765,990)	(1,291,654)	6,005
Accounts payable	(1,705,663)	1,329,599	(158,202)
Accrued and other liabilities	(193,762)	375,280	(359,982)
Net cash provided by operating activities	7,808,864	7,761,273	5,080,820
Cash Flows from Investing Activities
Purchases of property and equipment	(4,140,135)	(3,362,014)	(3,565,578)
Proceeds from sale of property and equipment	51,847	2,187,366	73,847
Net cash used in investing activities	(4,088,288)	(21,992,620)	(15,439,123)
Cash Flows from Financing Activities
Net change in bank overdraft	(37,978)	548,892	660,447
Proceeds from debt	0	32,000,000	0
Payments on term loans	(3,374,545)	(2,444,071)	(15,151,028)
Proceeds from revolving credit facilities, net	6,230,892	5,690,487	5,834,326
Debt issuance costs	0	(514,441)	0
Pay-off of old senior credit facility term debt	0	(15,375,000)	0
Post acquisition payments for Unique Fabricating	0	0	(755,018)
Proceeds from the issuance of common stock pursuant to initial public offering	0	0	25,673,750
Payment of initial public offering costs	0	0	(3,452,674)
Proceeds from exercise of stock options and warrants	37,001	115,975	397,071
Distribution of cash dividends	(5,850,544)	(5,811,858)	(2,877,717)
Net cash (used in) provided by financing activities	(2,995,174)	14,209,984	10,329,157
Net Decrease in Cash and Cash Equivalents	725,402	(21,363)	(29,146)
Cash and Cash Equivalents – Beginning of period	705,535	726,898	756,044
Cash and Cash Equivalents – End of period	1,430,937	705,535	726,898
Supplemental Disclosure of Cash Flow Information – Cash paid for
Interest	2,566,956	1,552,619	2,588,894
Income taxes	2,231,901	3,750,845	2,619,977
Supplemental Disclosure of Cash Flow Information – Non cash investing and financing activities for
Common stock issued for purchase of Intasco USA, Inc.	0	890,726	0
Accretion on redeemable common stock	0	0	1,364,031
Intasco
Cash Flows from Investing Activities
Acquisition of Intasco, net of cash acquired	0	(21,030,795)	0
Working capital adjustment from acquisition of Intasco	0	212,823	0
Great Lakes Foam Technologies, Inc.
Cash Flows from Investing Activities
Acquisition of Great Lakes Foam Technologies, Inc., net of cash	0	0	(11,819,991)
Working capital adjustment from acquisition of Great Lakes Foam Technologies, Inc.	$ 0	$ 0	$ (127,401)

Nature of Business and Signific

Nature of Business and Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Nature of Business and Significant Accounting Policies	Nature of Business and Significant Accounting Policies Nature of Business — UFI Acquisition, Inc. (“UFI”), a Delaware corporation, was formed on January 14, 2013, for the purpose of acquiring Unique Fabricating, Inc. and its subsidiaries (“Unique Fabricating”) (collectively, the “Company” or “Unique”) on March 18, 2013. The Company operates as one operating and reporting segment to fabricate and broker foam and rubber products, which are primarily sold to original equipment manufacturers (“OEMs”) and tiered suppliers in the automotive, appliance, water heater and heating, ventilation, and air conditioning (“HVAC”) industries. In September 2014, UFI changed its name to Unique Fabricating, Inc. which is now the parent company of the consolidated group. As a result of the name change, the subsidiary previously named Unique Fabricating, Inc. became Unique Fabricating NA, Inc. Basis of Presentation — The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The accompanying consolidated financial statements have been prepared by the Company, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Principles of Consolidation —The consolidated financial statements include the accounts of the Company and all subsidiaries over which the Company exercises control. All intercompany transactions and balances have been eliminated upon consolidation. Initial Public Offering — On July 7, 2015, the Company completed its initial public offering of 2,702,500 shares of common stock at a price to the public of $9.50 per share (the "IPO"), including 352,500 shares subject to an over-allotment option granted to the underwriters. After underwriting discounts, commissions, and approximate fees and expenses of the offering, as set forth in our registration statement for the IPO on Form S-1, the Company received net IPO proceeds of approximately $22.2 million. Of these proceeds, the Company used a portion to pay all of the $13.1 million principal amount of its 16% senior subordinated note, together with accrued interest through the date of payment. The Company used the remaining proceeds to temporarily reduce borrowings under the revolver portion of its senior secured credit facility. The Company also issued to the underwriters warrants to purchase up to 141,000 shares of common stock, as additional compensation in the IPO. The warrants are exercisable at a per share exercise price equal to 125% of the initial public offering price of $9.50 per share, and can be exercised commencing 1 year from the date of the IPO, until the date 5 years from the date of the IPO. The warrants had an aggregate grant date fair value of $336,300 and have been classified as equity and incremental direct costs associated with the IPO. Fiscal Years — The Company’s year-end periods end on the Sunday closest to the end of the calendar year-end period. The 52-week fiscal year periods for 2017, 2016, and 2015 ended on December 31, 2017 , January 1, 2017 , and January 3, 2016 , respectively. Cash and Cash Equivalents — The Company considers all highly liquid investments with an original maturity of three months or less to be cash and cash equivalents. Accounts Receivable — Accounts receivable are stated at the invoiced amount and do not bear interest. The allowance for doubtful accounts is management’s best estimate of the amount of probable credit losses in the existing accounts receivable. Management determines the allowance based on historical write off experience and an understanding of individual customer payment history and financial condition. Management reviews the allowance for doubtful accounts at regular intervals. Account balances are charged off against the allowance when management determines it is probable the receivable will not be recovered. The allowance for doubtful accounts was $768,500 and $655,312 at December 31, 2017 and January 1, 2017 , respectively. Inventory — Inventory is stated at the lower of cost or market, with cost determined on the first in, first out method (FIFO). Inventory acquired as part of a business combination is recorded at its estimated fair value at the time of the business combination. The Company periodically evaluates inventory for obsolescence, excess quantities, slow moving goods and other impairments of value and establishes reserves for any identified impairments. Valuation of Long-Lived Assets — The carrying value of long-lived assets held for use is periodically evaluated when events or circumstances warrant such a review. The carrying value of a long-lived asset held for use is considered impaired when the anticipated separately identifiable undiscounted cash flows from the asset are less than the carrying value of the asset. In that event, a loss is recognized based on the amount by which the carrying value exceeds the fair value of the long-lived asset. The Company determined that no impairment indicators were present and all originally assigned useful lives remained appropriate during the 52 weeks ended December 31, 2017 , January 1, 2017 , and January 3, 2016 , respectively. Property, Plant, and Equipment — Property, plant, and equipment purchases are recorded at cost. Property, plant, and equipment acquired as part of a business combination are recorded at estimated fair value at the time of the business combination. Depreciation is calculated principally using the straight line method over the estimated useful life of each asset. Leasehold improvements are depreciated over the shorter of the estimated useful life of the asset or the period of the related leases. Upon retirement or disposal, the initial cost or valuation and accumulated depreciation are removed from the accounts, and any gain or loss is included in net income. Repair and maintenance costs are expensed as incurred. Intangible Assets — The Company does not hold any intangible assets with indefinite lives. Identifiable intangible assets recognized as part of a business combination are recorded at their estimated fair value at the time of the business combination. Amortizable intangible assets are reviewed for impairment whenever events or circumstances indicate that the related carrying amount may be impaired. The remaining useful lives of intangible assets are reviewed annually to determine whether events and circumstances warrant a revision to the remaining period of amortization. The Company determined that no impairment indicators were present and all originally assigned useful lives remained appropriate during the 52 weeks ended December 31, 2017 , January 1, 2017 , and January 3, 2016 , respectively. Goodwill — Goodwill represents the excess of the acquisition cost of consideration transferred over the fair value of the identifiable net assets acquired and liabilities assumed from business combinations at the date of acquisition. Goodwill is not amortized, but rather is assessed at least on an annual basis for impairment. If it is determined that it is more likely than not that the fair value is greater than the carrying value of a reporting unit then a qualitative assessment may be used for the annual impairment test. Otherwise, a one-step process is used which requires estimating the fair value of each reporting unit compared to its carrying value. If the carrying value exceeds the estimated fair value, goodwill impairment will be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. The Company has one reporting unit for goodwill testing purposes. There were no impairment charges recognized during the 52 weeks ended December 31, 2017 , January 1, 2017 , and January 3, 2016 , respectively. Debt Issuance Costs — Debt issuance costs represent legal, consulting, and other financial costs associated with debt financing and are reported netted against the related debt instrument. Amounts paid to or on behalf of lenders are presented as debt discount, as a reduction of the noted debt instrument. Debt issuance costs on term debt are amortized using the straight lines basis over the term of the related debt (which is immaterially different from the required effective interest method) while those related to revolving debt are amortized using a straight line basis over the term of the related debt. At December 31, 2017 and January 1, 2017 , debt issuance costs were $232,045 and $301,620 , respectively, while amounts paid to or on behalf of lenders presented as debt discounts were $242,059 and $270,959 , respectively. On April 29, 2016, the Company refinanced its existing term loan and revolving debt facility with new term loans and a new revolving debt facility which are further described in Note 6. The Company reviewed this refinancing for extinguishment accounting and concluded that $60,202 of the $160,111 remaining issuance costs not amortized on the old revolving debt facility qualified for extinguishment and were recognized as a loss on extinguishment immediately. The remaining $99,909 of unamortized issuance costs not extinguished on the old revolving debt facility and all of the $92,508 of remaining unamortized debt discounts on the old term loan did not meet extinguishment accounting and were therefore carried forward to the new revolving debt facility and term loans. In July 2015, the Company's 16% senior subordinated note was entirely paid off with the IPO proceeds. On the date paid off, $386,552 of debt discounts remained to be amortized. The Company concluded that the 16% senior subordinated note and related debt discounts qualified for extinguishment accounting and the debt discounts were recognized as a loss on extinguishment immediately in the third quarter of 2015. The extinguishment was recognized as part of interest expense in the consolidated statements of operations. Amortization expense has been recognized as a component of interest expense which includes both debt issuance costs and debt discounts in the amounts of $148,948 for the 52 weeks ended December 31, 2017 , $127,556 for the 52 weeks ended January 1, 2017 , and $269,629 for the 52 weeks ended January 3, 2016 , respectively. Investments — Investments in entities in which the Company has less than a 20 percent interest or is not able to exercise significant influence are carried at cost. Cost basis investments acquired are recorded at cost. Dividends received are included in income, except for those dividends received in excess of the Company’s proportionate share of accumulated earnings, which are applied as a reduction of the cost of the investment. Impairment losses due to a decline in the value of the investment that is other than temporary are recognized when incurred. Dividend income of $0 , $0 and $0 was recognized for the 52 weeks ended December 31, 2017 , January 1, 2017 , and January 3, 2016 , respectively. No impairment loss was recognized for the 52 weeks ended December 31, 2017 , January 1, 2017 , and January 3, 2016 , respectively. Accounts Payable — Under the Company’s cash management system, checks issued but not yet presented to the Company’s bank frequently result in overdraft balances for accounting purposes and are classified as accounts payable on the consolidated balance sheets. Accounts payable included $2,919,460 and $2,938,750 of checks issued in excess of available cash balances at December 31, 2017 and January 1, 2017 , respectively. Stock Based Compensation — The Company accounts for its stock based compensation using the fair value of the award estimated at the grant date of the award. The Company estimates the fair value of awards, consisting of stock options, using the Black Scholes option pricing model. Compensation expense is recognized in earnings using the straight line method over the vesting period, which represents the requisite service period. Revenue Recognition — Revenue is recognized by the Company upon shipment to customers when the customer takes ownership and assumes the risk of loss, collection of the relevant receivable is probable, persuasive evidence of an arrangement exists, and the sale price is fixed and determinable. Provisions for discounts and rebates to customers, estimated returns and allowances, and other adjustments are provided for in the same period the related sales are recorded. Shipping and Handling — Shipping and handling costs are included in cost of sales as they are incurred. Income Taxes — A current tax liability or asset is recognized for the estimated taxes payable or refundable on tax returns for the period. Deferred tax liabilities or assets are recognized for the estimated future tax effects of temporary differences between financial reporting and tax accounting measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The Company also evaluates the need for valuation allowances to reduce the deferred tax assets to realizable amounts. Management evaluates all positive and negative evidence and uses judgment regarding past and future events, including operating results, to help determine when it is more likely than not that all or some portion of the deferred tax assets may not be realized. When appropriate, a valuation allowance is recorded against deferred tax assets to reserve for future tax benefits that may not be realized. The Company recognizes the benefit of a tax position when it is more likely than not, based on the technical merits, that the position will be sustained upon examination. For tax positions meeting the more likely than not threshold, the amount recognized in the financial statements is the largest benefit that has a greater than 50 percent likelihood of being realized upon settlement with the relevant tax authority. The Company assesses all tax positions for which the statute of limitations remain open. Foreign Currency Adjustments — The Company’s functional currency for all operations worldwide is the United States dollar. Nonmonetary assets and liabilities of foreign operations are remeasured at historical rates and monetary assets and liabilities are remeasured at exchange rates in effect at the end of each reporting period. Income statement accounts are remeasured at average exchange rates for the year. Gains and losses from translation of foreign currency financial statements into United States dollars are classified in other income in the consolidated statements of operations. Concentration Risks — The Company is exposed to various significant concentration risks as follows: Customer and Credit — During the 52 weeks ended December 31, 2017 , January 1, 2017 , and January 3, 2016 , the Company’s sales were derived from customers principally engaged in the North American automotive industry. Company sales directly and indirectly to General Motors Company (“GM”), Fiat Chrysler Automobiles (“FCA”), and Ford Motor Company (“Ford”), as a percentage of total net sales were: 14 , 13 , and 11 percent, respectively, during the 52 weeks ended December 31, 2017 ; 15 , 11 , and 12 percent, respectively, during the 52 weeks ended January 1, 2017 ; and 15 , 15 , and 15 percent, respectively, during the 52 weeks ended January 3, 2016 . No Tier 1 suppliers represented more than 10 percent of direct Company sales for any period noted above. GM accounted for 11 and 12 percent of direct accounts receivable as of December 31, 2017 and January 1, 2017 , respectively. Labor Markets — At December 31, 2017 , of the Company’s hourly plant employees working in the United States manufacturing facilities, 32 percent were covered under a collective bargaining agreement which expires in August 2019 while another 6 percent were covered under a separate agreement that expires in February 2020. Foreign Currency Exchange — The expression of assets and liabilities in a currency other than the functional currency, which is the United States dollar, gives rise to exchange gains and losses when such assets and obligations are paid in another currency. Foreign currency exchange rate adjustments (i.e., differences between amounts recorded and actual amounts owed or paid) are reported in the consolidated statements of operations as the foreign currency fluctuations occur. Foreign currency exchange rate adjustments are reported in the consolidated statements of cash flows using the exchange rates in effect at the time of the cash flows. At December 31, 2017 , the Company’s exposure to assets and liabilities denominated in another currency was not significant. To the extent there is a fluctuation in the exchange rates, the amount of local currency to be paid or received to satisfy foreign currency obligations in 2017 may increase or decrease. International Operations — The Company manufactures and sells products outside of the United States primarily in Mexico and Canada. Foreign operations are subject to various political, economic and other risks and uncertainties inherent in foreign countries. Among other risks, the Company’s operations are subject to the risks of: restrictions on transfers of funds; export duties, quotas, and embargoes; domestic and international customs and tariffs; changing taxation policies; foreign exchange restrictions; political conditions; and governmental regulations. During the 52 weeks ended December 31, 2017 , January 1, 2017 , and January 3, 2016 , 15 , 12 , and 12 percent, respectively, of the Company’s production occurred in Mexico. During the 52 weeks ended December 31, 2017 , January 1, 2017 , and January 3, 2016 , 9 , 6 , and 0 percent, respectively, of the Company's production occurred in Canada. Sales derived from customers located in Mexico, Canada, and other foreign countries were 15 , 10 , and 1 percent, respectively during the 52 weeks ended December 31, 2017 , 12 , 8 , and 1 percent, respectively, during the 52 weeks ended January 1, 2017 , and 13 , 4 , and 1 percent, respectively during the 52 weeks ended January 3, 2016 , of the Company’s total sales. Derivative financial instruments — All derivative instruments are required to be reported on the consolidated balance sheets at fair value unless the transactions qualify and are designated as normal purchases or sales. Changes in fair value are reported currently through earnings unless they meet hedge accounting criteria. See Note 7 for further information regarding the Company's derivative instrument makeup. Use of Estimates — The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Recently Issued Accounting Pronouncements — In April 2015, the Financial Accounting Standards Board (the “FASB”) issued ASU 2015-03, Interest-Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs . Previously, such costs were required to be presented as a non-current asset in an entity's balance sheet and amortized into interest expense over the term of the related debt instrument. The changes implemented by the ASU require that debt issuance costs be presented in the entity's balance sheet as a direct deduction from the carrying value of the related debt liability. The amortization of debt issuance costs remains unchanged per the ASU. The Company adopted this ASU during 2016 and applied this change to the current and prior periods in the financial statements for comparison purposes. Debt issuance costs are no longer disclosed separately by the Company in the balance sheet and are now shown as a direct deduction from the carrying value of the related debt liability. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers . This ASU supersedes most of the existing guidance on revenue recognition in ASC Topic 605, Revenue Recognition and establishes a broad principle that would require an entity to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve this principle, an entity identifies the contract with a customer, identifies the separate performance obligations in the contract, determines the transaction price, allocates the transaction price to the separate performance obligations and recognizes revenue when each separate performance obligation is satisfied. In August 2015, the FASB issued ASU 2015-14, Revenue From Contracts with Customers (Topic 606): Deferral of the Effective Date to defer implementation of 2014-09 by one year. The guidance is now currently effective for fiscal years beginning after December 15, 2018 and is to be applied retrospectively at the entity's election either to each prior reporting period presented or with the cumulative effect of application recognized at the date of initial application. The ASU allows for early adoption for fiscal years beginning after December 15, 2016, however, the Company is currently evaluating the impact that the adoption of this guidance will have on its consolidated financial statements. The Company plans to adopt the new accounting standard ASC 606, Revenue from Contracts with Customers and all the related amendments to all contracts using the modified retrospective method. In November 2015, the FASB issued ASU 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes. Currently, deferred income tax liabilities and assets are required to be separated into current and noncurrent amounts in an entity's balance sheet. The changes implemented by the ASU require that all deferred income tax liabilities and assets are to be classified as noncurrent on the balance sheet. The ASU is effective for the Company for financial statements issued for fiscal years beginning after December 15, 2017, with early adoption permitted. The Company adopted this ASU during the first quarter of 2016 and applied the change to only these 2016 periods in the consolidated financial statements as the prior year periods were not retrospectively adjusted. Deferred taxes are now shown as non-current by the Company in the consolidated balance sheet. In February 2016, the FASB issued ASU 2016-02, Leases , which will supersede the current lease requirements in Topic 850. The ASU requires lessees to recognize a right of use asset and related lease liability for all leases, with a limited exception for short-term leases. Leases will be classified as either finance or operating, with the classification affecting the pattern of expense recognition in the statement of operations. Currently, leases are classified as either capital or operating, with only capital leases recognized on the balance sheet. The reporting of lease related expenses in the consolidated statements of operations and cash flows will be generally consistent with current guidance. The ASU is effective for the Company for financial statements issued for fiscal years beginning after December 15, 2019. The Company believes the impact that the adoption of this guidance will have on its consolidated financial statements will be to materially increase assets and liabilities on the consolidated balance sheet, but it is not expected to materially impact the consolidated statements of operations. In March 2016, the FASB issued ASU 2016-09, Compensation-Stock Compensation (Topic 718): Improvement to Employee Share-based Payment Accounting(ASU 2016-09) , to simplify the accounting for share-based payment transactions. The ASU is effective for the Company for financial statements issued for fiscal years beginning after December 15, 2017. The Company early adopted this ASU during 2016 and applied the change to this period and future periods in the consolidated financial statements. Excess tax benefits are no longer disclosed in the consolidated statements of cash flows as a result of this early adoption and are also recognized as income tax expense in the income statement. The Company adopted the provisions related to forfeitures as well to record actual forfeitures as they occur, and the impact on our consolidated balance sheet as of all years presented was immaterial. In January 2017, the FASB issued ASU 2017-4, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment, accounting guidance which removes Step 2 of the goodwill impairment test. Goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. The ASU is effective for annual or interim reporting periods beginning after December 15, 2021. Early adoption is permitted. The Company adopted the provisions related to this ASU during fiscal year 2017 and the impact was not material.

Business Combinations

Business Combinations	12 Months Ended
	Dec. 31, 2017
Business Combinations [Abstract]
Business Combinations	Business Combinations 2016 On April 29, 2016, Unique-Intasco Canada, Inc. (the “Canadian Buyer”), a newly formed subsidiary of the Company, acquired the business and substantially all of the assets of Intasco Corporation, a Canadian based tape manufacturer, for a purchase price of $21,049,045 , in cash paid at closing. On the same date, Unique Fabricating NA, Inc. (the “US Buyer”), an existing subsidiary of the Company, purchased 100% of the outstanding capital stock of Intasco USA, Inc. a United States based tape manufacturer, for a purchase price of $890,726 paid by the issuance of 70,797 shares of the Company's common stock. These shares were issued in reliance upon an exemption from the registration requirements of the Securities Act of 1933, as amended. A portion of the purchase price is being held in escrow to fund the obligations of Intasco Corporation and Intasco USA, Inc., (together “Intasco”) and a related party to indemnify the Canadian Buyer and US Buyer against certain claims, losses, and liabilities. The purchase agreement included a potential purchase price adjustment provision based on the actual working capital acquired on the day of closing as compared to what was originally estimated at closing. On the date of closing, the Company paid an estimated working capital adjustment of $126,047 to Intasco, which is included in the total cash consideration paid above. During August 2016, Intasco paid the Company $212,823 for the actual final working capital adjustment. This final actual working capital settlement is included in the table below. The cash purchase price was paid with borrowings under a new senior credit facility which replaced the Company's existing facility as further described in Note 6. The Company incurred transaction costs of $852,580 related to the acquisition of Intasco. The acquisition significantly broadened the Company's solution offerings, production capabilities, and potentially expanded its reach into new markets. In connection with the business combination, Intasco terminated the leases it had with an affiliated entity for its operating facilities in the United States and Canada and the Company entered into new leases for the same facilities. The terms of the Company's lease in the United States provides for a term of two years with monthly rental payments of $4,000 beginning on May 1, 2016 and $4,080 beginning on May 1, 2017. The terms of the Company's lease in Canada provides for a term of five years with monthly rental payments of $16,750 Canadian dollars beginning on May 1, 2016, $17,085 Canadian dollars beginning on May 1, 2017, and $17,427 Canadian dollars beginning on May 1, 2019. The following table summarizes the acquisition date fair values of the assets acquired and liabilities assumed. Cash $ 18,250 Accounts receivable 2,146,082 Inventory 2,485,781 Other current assets 74,194 Property, plant, and equipment 861,491 Identifiable intangible assets 7,316,694 Accounts payable and accrued liabilities (716,080 ) Deferred tax liabilities (97,622 ) Total identifiable net assets 12,088,790 Goodwill 9,657,221 Total $ 21,746,011 The goodwill arising from the acquisition consisted largely of Intasco's reputation, trained employees, and other unique features that cannot be associated with a specific identifiable asset. Of the total amount of goodwill recognized, $7,267,507 is expected to be deductible for tax purposes. The Company also recognized intangible assets as part of the acquisition which consisted of customer contracts, trade names, and unpatented technology. For further detail of the Company's intangibles please see Note 5. The consolidated operating results for the 52 weeks ended January 1, 2017 included the operating results of Intasco from April 29, 2016. Intasco's revenue included in the accompanying statement of operations for the 52 weeks ended January 1, 2017 , totaled $12,501,386 , from the date of the acquisition. Intasco's net income included in the accompanying statement of operations for the 52 weeks ended January 1, 2017 , totaled $131,433 , from the date of acquisition. 2015 On August 31, 2015, the Company, through a newly created subsidiary, Unique Molded Foam Technologies, Inc., acquired substantially all of the assets of Great Lakes Foam Technologies, Inc. (“Great Lakes”) for total cash consideration of $11,947,392 , after all adjustments described below. The purchase agreement included a potential purchase price adjustment provision based on the actual working capital acquired on the day of closing as compared to what was originally estimated at closing. On the date of closing, the Company paid a total purchase price of $12,000,000 less the estimated working capital adjustment of $180,009 owed to the Company by Great Lakes. During November 2015, the Company paid Great Lakes $127,401 for the actual working capital adjustment true-up once the actual working capital was determined. This acquisition was financed through the Company's revolving line of credit without the need for further revisions to any debt or equity agreements. The Company incurred costs of $421,637 related to the acquisition of Great Lakes. The acquisition allowed the Company to strengthen its existing product offerings and enabled it to access new customers and increase sales to certain of its existing customers. In connection with the business combination, Great Lakes terminated the lease it had with an affiliated entity for its operating facility and the Company entered into a new lease with that entity for the same facility. The terms of the Company's lease provide for monthly rental payments of $7,500 for five years beginning on August 31, 2015. The following table summarizes the acquisition date fair values of the assets acquired and liabilities assumed. Accounts receivable $ 1,001,005 Inventory 1,115,809 Deferred tax assets 1,468 Other current assets 2,500 Property, plant, and equipment 810,001 Identifiable intangible assets 5,915,000 Accounts payable and accrued liabilities (928,933 ) Total identifiable net assets 7,916,850 Goodwill 4,030,542 Total $ 11,947,392 The goodwill arising from the acquisition consisted largely of Great Lakes reputation, trained employees, and other unique features that cannot be associated with a specific identifiable asset. Of the total amount of goodwill recognized, $4,347,457 is expected to be deductible for tax purposes. The Company also recognized intangible assets as part of the acquisition which consisted of customer contracts and non-compete agreements. For further detail of the Company's intangibles please refer to Note 5. Great Lakes sales included in the accompanying consolidated statements of operations for the 52 weeks ended January 3, 2016 , totaled $3,627,337 from the date of acquisition. Great Lakes earnings included in the accompanying statement of operations for the 52 weeks ended January 3, 2016 , totaled $235,359 from the date of acquisition. For the 52 weeks ended January 3, 2016 , $145,655 in sales was derived from intercompany sales to the Company which were eliminated in consolidation. The following unaudited pro forma supplementary data for the 52 weeks ended January 1, 2017 and 52 weeks ended January 3, 2016 give effect to the acquisition of Intasco as if it had occurred on January 5, 2015 (the first day of the Company's 2015 fiscal year) and Great Lakes as if it had occurred on December 30, 2013 (the first day of the Company’s 2014 fiscal year), The unaudited pro forma supplementary data is provided for informational purposes only and should not be construed to be indicative of the Company’s results of operations had the acquisition been consummated on the date assumed and does not project the Company’s results of operations for any future date. Fifty-Two Weeks Ended January 1, 2017 Fifty-Two Weeks Ended January 3, 2016 (Unaudited) (Unaudited) Net sales $ 176,309,480 $ 167,208,908 Net income $ 6,460,512 $ 6,505,410 Net income per common share – basic $ 0.67 $ 0.80 Net income per common share – diluted $ 0.65 $ 0.77

Inventory

Inventory	12 Months Ended
	Dec. 31, 2017
Inventory Disclosure [Abstract]
Inventory	Inventory Inventory consists of the following: December 31, January 1, Raw materials $ 9,005,335 $ 9,513,980 Work in progress 578,056 623,504 Finished goods 6,746,693 6,594,124 Total inventory $ 16,330,084 $ 16,731,608 The allowance for obsolete inventory was $434,712 and $471,537 at December 31, 2017 and January 1, 2017 , respectively. Included in inventory are assets located in Mexico with a carrying amount of $3,173,944 at December 31, 2017 and $2,911,926 at January 1, 2017 , and assets located in Canada with a carrying amount of $1,072,430 at December 31, 2017 and $1,180,400 at January 1, 2017 . The inventory acquired in the 2016 acquisition of Intasco included a fair value adjustment of $318,518 , At January 1, 2017 , $0 of this fair value adjustment remained in inventory while $318,518 was included in costs of goods sold during the 52 weeks ended January 1, 2017 . The inventory acquired in the 2015 acquisition of Great Lakes included a fair value adjustment of $146,191 . At January 3, 2016 , $0 of this fair value adjustment remained in inventory while $146,191 was included in cost of goods sold during the 52 weeks ended January 3, 2016 .

Property, Plant, and Equipment

Property, Plant, and Equipment	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Property, Plant, and Equipment	Property, Plant, and Equipment Property, plant, and equipment consists of the following: December 31, January 1, Depreciable Life – Years Land $ 1,663,153 $ 1,663,153 Buildings 7,606,125 7,541,976 23 – 40 Shop equipment 16,654,811 13,003,025 7 – 10 Leasehold improvements 997,277 913,097 3 – 10 Office equipment 1,442,082 1,188,746 3 – 7 Mobile equipment 223,474 218,743 3 Construction in progress 1,253,760 1,425,090 Total cost 29,840,682 25,953,830 Accumulated depreciation 6,865,281 4,755,908 Net property, plant, and equipment $ 22,975,401 $ 21,197,922 Depreciation expense was $2,197,415 for the 52 weeks ended December 31, 2017 , $1,804,110 for the 52 weeks ended January 1, 2017 , and $1,379,176 for the 52 weeks ended January 3, 2016 . Included in property, plant, and equipment are assets located in Mexico with a carrying amount of $2,659,920 and $1,586,472 at December 31, 2017 and January 1, 2017 , respectively, and assets located in Canada with a carrying amount of $684,431 and $755,040 at December 31, 2017 and January 1, 2017 , respectively.

Intangible Assets

Intangible Assets	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible Assets Intangible assets of the Company consist of the following at December 31, 2017 : Gross Carrying Amount Accumulated Amortization Weighted Average Life – Years Customer contracts $ 26,523,065 $ 11,588,946 8.16 Trade names 4,673,044 1,160,569 16.43 Non-compete agreements 1,161,790 995,233 2.53 Unpatented technology 1,534,787 512,156 5.00 Total $ 33,892,686 $ 14,256,904 Intangible assets of the Company consist of the following at January 1, 2017 : Gross Carrying Accumulated Weighted Average Customer contracts $ 26,523,065 $ 8,240,853 8.16 Trade names 4,673,044 868,866 16.43 Non-compete agreements 1,161,790 818,585 2.53 Unpatented technology 1,534,787 206,040 5.00 Total $ 33,892,686 $ 10,134,344 The weighted average amortization period for all intangible assets is 8.96 years . Amortization expense for intangible assets totaled $4,122,560 for the 52 weeks ended December 31, 2017 , $3,697,564 for the 52 weeks ended January 1, 2017 , and $2,524,253 for the 52 weeks ended January 3, 2016 . Estimated amortization expense is as follows: 2018 $ 4,070,321 2019 3,945,264 2020 3,913,627 2021 2,455,712 2022 1,305,314 Thereafter 3,945,544 Total $ 19,635,782

Long-term Debt

Long-term Debt	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Long-term Debt	Long-term Debt Old Senior Credit Facility Until April 29, 2016, The Company had a senior credit facility with Citizens Bank, National Association (“Citizens”) under which we could borrow up to $20.0 million under a term loan and $25.0 million under a revolving line of credit. On April 29, 2016, in conjunction with the acquisition of Intasco, this senior credit facility was repaid and terminated and replaced with a new senior credit facility which is described below. On the date of termination there was $15.4 million outstanding under the Term Loan and $17.3 million outstanding under the revolving line of credit, all of which were repaid. Borrowings under the revolving line of credit and term loan were subject to a borrowing base, bore interest at the 30 day LIBOR plus, in each case a margin that ranged from 2.75 percent to 3.25 percent, and were secured by substantially all of the Company’s assets. The half percent range per annum on the term loan and revolving line of credit was determined quarterly based on the senior leverage ratio. The Revolver was going to mature on December 18, 2017. New Credit Agreement On April 29, 2016, Unique Fabricating NA, Inc. (the “US Borrower”) and Unique-Intasco Canada, Inc. (the “CA Borrower”) and Citizens , acting as syndication agent, and other lenders, entered into a credit agreement (the “New Credit Agreement”) providing for borrowings of up to the aggregate principal amount of $62.0 million . The New Credit Agreement is a senior secured credit facility and consists of a revolving line of credit of up to $30.0 million (the “New Revolver”) to the US Borrower, a $17.0 million principal amount term loan (the “US Term Loan”) to the US Borrower, and a $15.0 million principal amount term loan (the “CA Term Loan”) to the CA Borrower. At Closing, the US Term Loan and the CA Term Loan were fully funded and the US Borrower borrowed approximately $22.9 million under the New Revolver. The borrowings were used to finance the acquisition of Intasco, including working capital adjustments and amounts paid into escrow, and to repay the Company’s existing senior credit facility, which was terminated as noted above. On August 18, 2017, the US Borrower and the CA borrower entered into the Second Amendment (the “Amendment”) to the New Credit Agreement, with Citizens acting as syndication agent, and other lenders. The amendment converted $4.0 million of outstanding borrowings under the New Revolver into an additional $4.0 million term loan to the US borrower (the “US Term Loan II”). The conversion of a portion of the outstanding borrowings under the New Revolver did not reduce the aggregate amount available to be borrowed under it. The New Revolver, US Term Loan, US Term Loan II, and CA Term Loan all mature on April 28, 2021 and bear interest at the Company's election of either (i) the greater of the Prime Rate or the Federal Funds Effective Rate (the “Base Rate”) or ii) the LIBOR rate, plus an applicable margin ranging from 1.75 percent to 2.50 percent per annum in the case of the Base Rate and 2.75 percent to 3.50 percent per annum in the case of the LIBOR rate, in each case, based on a senior leverage ratio threshold, measured quarterly. In addition, the New Credit Agreement allows for increases in the principal amount of the New Revolver and the US and CA Term Loans not to exceed a $10.0 million principal amount, in the aggregate, provided that before and after giving effect to the proposed increase (and any transactions to be consummated using proceeds of the increase), the total leverage and debt service coverage ratios do not exceed specified amounts. The New Credit Agreement also provides for the issuance of letters of credit with a face amount of up to a $2.0 million , in the aggregate, provided that any letter of credit that is issued will reduce availability under the New Revolver. As of December 31, 2017 , $22,708,570 was outstanding under the New Revolver. This amount is gross of debt issuance costs which are further described in Note 1. The New Revolver had an effective interest rate of 5.069 percent per annum at December 31, 2017 , and is secured by substantially all of the Company’s assets. At December 31, 2017 , the maximum additional available borrowings under the New Revolver were $7,191,430 , which includes a reduction for a $100,000 letter of credit issued for the benefit of the landlord of one of the Company’s leased facilities. The maximum amount available was further subject to borrowing base restrictions. Long term debt consists of the following: December 31, January 1, US Term Loan, payable to lenders in quarterly installments of $318,750 through March 31, 2018, $425,000 through March 31, 2019, and $531,250 through March 31, 2021, with a lump sum due at maturity. The effective interest rate was 5.069% per annum at December 31, 2017. At December 31, 2017 the balance of the US Term Loan is presented net of a debt discount of $139,588 from costs paid to or on behalf of the lenders. $ 14,060,065 $ 15,862,309 US Term Loan II, payable to lenders in quarterly installments of $200,000 through March 31, 2021, with a lump sum due at maturity. The effective interest rate was 5.069% per annum at December 31. At December 31, 2017, the balance of the US Term Loan II is presented net of a debt discount of $33,602 from costs paid to or on behalf of the lenders. 3,566,398 — CA Term Loan, payable to lenders in quarterly installments of $281,250 through March 31, 2018, $375,000 through March 31, 2019, and $468,750 through March 31, 2021, with a lump sum due at maturity. The effective interest rate was 5.069% per annum at December 31, 2017. At December 31, 2017 the balance of the CA Term Loan is presented net of a debt discount of $68,869 from costs paid to or on behalf of the lenders. 12,962,381 14,066,732 Note payable to the seller of former owner of business Unique acquired in 2014 which is unsecured and subordinated to the New Credit Agreement. Interest accrues monthly at an annual rate of 6 percent. The note payable is due in full on February 6, 2019. 500,000 500,000 Other debt — 5,446 Total debt excluding revolver 31,088,844 30,434,487 Less current maturities 3,799,998 2,405,446 Long-term debt – Less current maturities $ 27,288,846 $ 28,029,041 The senior credit facility contains customary negative covenants and requires that the Company comply with various financial covenants including a total leverage ratio and a debt service coverage ratio, as defined in the New Credit Agreement. Also, the senior credit facility restricts dividends being paid to the Company from its subsidiaries. As of December 31, 2017 and January 1, 2017 , the Company was in compliance with these covenants. Additionally, the US Term Loan and CA Term Loan contains a clause, effective January 1, 2017, that requires an excess cash flow payment to be made to the lenders to reduce the US Term Loan or the CA Term Loan if the Company’s cash flow exceeds certain thresholds as defined by the New Credit Agreement and certain performance thresholds are not met. Maturities on the Company’s Revolver and other long term debt obligations for the remainder of the current fiscal year and future fiscal years: 2018 $ 3,800,000 2019 5,100,000 2020 4,800,000 2021 40,339,473 2022 — Thereafter — Total 54,039,473 Discounts (242,059 ) Debt issuance costs (232,045 ) Total debt – Net $ 53,565,369

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments Interest Rate Swap The Company holds derivative financial instruments, in the form of an interest rate swaps, as required by its New Credit Agreement, for the purpose of hedging certain identifiable transactions in order to mitigate risks relating to the variability of future earnings and cash flows caused by interest rate fluctuations. The Company has elected not to apply hedge accounting for financial reporting purposes. The interest rate swaps are recognized in the accompanying consolidated balance sheets at their fair value. Monthly settlement payments due on the interest rate swap and changes in their fair value are recognized currently in net income as interest expense in the consolidated statements of operations. Effective June 30, 2016, as required under the New Credit Agreement entered into during April 2016, the Company entered into a new interest rate swap which requires the Company to pay a fixed rate of 1.055 percent per annum while receiving a variable rate per annum based on the one month LIBOR for a net monthly settlement based on the notional amount. This terminated the old swap entered into on January 17, 2014. The notional amount at the effective date was $16,681,250 which decreased by $318,750 each quarter until June 30, 2017, and began decreasing by $425,000 per quarter until June 29, 2018, when it will begin decreasing by $531,250 per quarter until it expires on June 28, 2019. The Company paid $44,624 , in the aggregate, in net monthly settlements with respect to the interest rate swap for the 52 weeks ended January 1, 2017 . Both the change in fair value and the monthly settlements were included in interest expense in the consolidated statement of operations. Effective October 2, 2017, as required under the Second Amendment to the New Credit Agreement, the Company entered into another interest rate swap that requires the Company to pay a fixed rate of 1.093 percent per annum while receiving a variable interest rate per annum based on the one month LIBOR for a net monthly settlement based on the notional amount in effect. The notional amount at the effective date was $1,900,000 which decreases by $100,000 each quarter until it expires on September 30, 2020. Both the change in fair value and the monthly settlements are included in interest expense in the consolidated statement of operations. At December 31, 2017 , the fair value of the two swaps was $159,320 , and was included in other long-term assets in the consolidated balance sheet. The Company paid $1,159 , in the aggregate, in net monthly settlements with respect to the interest rate swaps for the 52 weeks ended December 31, 2017 . Foreign Currency Forward Contract Effective June 29, 2016, the Company entered into a foreign currency forward contract to hedge the Mexican Peso. The forward contract has an equivalent USD notional amount of $3,300,000 and expired on June 30, 2017. The Company is exposed to market risk, including fluctuations in foreign currency exchange rates which may result in cash flow risks, and as a result from time to time will enter into forward contracts to mitigate risks relating to the variability of future earnings and cash flows caused by foreign currency rate fluctuations. The Company elected not to apply hedge accounting for financial reporting purposes. The foreign currency forward contract was recognized in the accompanying consolidated balance sheet at its fair value and changes in its fair value were recognized currently in net income as gain/losses on foreign currency exchange (which is part of other income (expense), net) in the consolidated statement of operations. At December 31, 2017 and January 1, 2017 , the fair value of this foreign currency forward contract was $0 and $(168,880) .

Restructuring

Restructuring	12 Months Ended
	Dec. 31, 2017
Restructuring and Related Activities [Abstract]
Restructuring	Restructuring Unique's restructuring activities are undertaken as necessary to implement management's strategy, streamline operations, take advantage of available capacity and resources, and achieve net cost reductions. The restructuring activities generally relate to realignment of existing manufacturing capacity and closure of facilities and other exit or disposal activities, either in the normal course of business or pursuant to specific restructuring programs. Fort Smith Restructuring On February 13, 2018, subsequent to our 2017 fiscal year-end, the Company made the decision to close its manufacturing facility in Fort Smith, Arkansas. The Company currently expects to cease operations at the Fort Smith facility by end of June of 2018, and that approximately 20 positions will be eliminated as a result of the closure. The Company's decision resulted from our desire to streamline operations and to utilize some of the available excess capacity in other of our facilities. As such, the Company will move existing Fort Smith production to our manufacturing facilities in Evansville, Indiana and Monterrey, Mexico. The Company will provide the affected employees severance pay, health benefits continuation and job search assistance. The Company evaluated whether or not this closing met the criteria for discontinued operations and concluded that the closing did not meet the definition as the closing did not represent a strategic shift in the Company's operations and the Company will have continuing cash flows from the production being moved to other facilities within the Company. The Company currently estimates that it will incur approximately $0.2 million in employee termination costs. At this time, the Company estimates the ranges of amounts of other major types of costs expected to be incurred in connection with the closure to be approximately $0.4 million to $0.5 million . Following the closure, the Company expects to market the facility, which currently has a net book value of approximately $0.7 million , for sale. Port Huron Restructuring On February 1, 2018, subsequent to our 2017 fiscal year-end, the Company made the decision to close its manufacturing facility in Port Huron, Michigan. The Company currently expects to cease operations at the Port Huron facility by end of March of 2018 and expects that approximately 7 positions will be eliminated as a result of the closure. The Company's decision resulted from our desire to streamline operations and to utilize some of the available excess capacity in other of our facilities. As such, the Company will move existing Port Huron production to our manufacturing facilities in London, Ontario, Auburn Hills, Michigan, and Louisville, Kentucky. The Company will provide the affected employees severance pay, health benefits continuation and job search assistance. The Company evaluated whether or not this closing met the criteria for discontinued operations and concluded that the closing did not meet the definition as the closing did not represent a strategic shift in the Company's operations and the Company had continuing cash flows from the production being moved to other facilities within the Company. The Company currently estimates that it will incur approximately $0.1 million in employee termination costs. At this time, the Company estimates the ranges of amounts of other major types of costs expected to be incurred in connection with the closure to be approximately $0.1 million to $0.2 million . Murfreesboro Restructuring On October 27, 2015, the Company announced the planned closure of its manufacturing facility located in Murfreesboro, Tennessee that resulted in a workforce reduction of approximately 30 employees. The planned closure of the Murfreesboro facility was effective in the fourth quarter of 2015 and completed in January 2016. The action was necessary due to the tight labor market in Murfreesboro and the struggle to staff production levels to meet the ongoing growth strategy for Murfreesboro's respective products manufactured at the plant. In order to ensure the Company's ability to service its customers at the increasing volumes projected for the future, the Company decided to move existing Murfreesboro production including equipment to the Company's other manufacturing facilities in Evansville, Indiana and LaFayette, Georgia. The Company evaluated whether or not this closing met the criteria for discontinued operations and concluded that the closing did not meet the definition as the closing did not represent a strategic shift in the Company's operations and the Company had continuing cash flows from the production being moved to other facilities within the Company. There were no costs incurred with respect to the Murfreesboro restructuring in 2017 as the restructuring and costs associated with the closure were all completed in 2016 as noted below. The Company reversed severance related costs which had been previously been recorded as a result of this plant closure in the amount of $(51,951) in the 52 weeks ended January 1, 2017 . The amount of other costs incurred associated with this plant closure, which primarily consisted of moving existing production equipment at Murfreesboro to other facilities was $87,005 in the 52 weeks ended January 1, 2017 . The expenses were recorded to the restructuring expense line in continuing operations in the Company's consolidated statements of operations. The Company sold the building it owned in Murfreesboro, which had a net book value of $2,033,327 on October 31, 2016, for cash proceeds of $2,175,185 resulting in a gain on the sale of $147,413 . Through the date of the sale the building qualified as being held for sale, and therefore was presented as such in the consolidated balance sheet. The tables below summarize the activity in the restructuring liability for the 52 weeks ended January 1, 2017 . Employee Termination Benefits Liability Other Exit Costs Liability Total Accrual balance at January 3, 2016 $ 190,864 $ 63,327 $ 254,191 Provision for estimated expenses incurred during the year (51,951 ) 87,005 35,054 Payments made during the year (138,913 ) (150,332 ) (289,245 ) Accrual balance at January 1, 2017 $ — $ — $ —

Redeemable Common Stock

Redeemable Common Stock	12 Months Ended
	Dec. 31, 2017
Temporary Equity [Abstract]
Redeemable Common Stock	Redeemable Common Stock On March 18, 2013, in conjunction with the acquisition of Unique Fabricating, and on December 18, 2013, in conjunction with the acquisition of Prescotech Holdings, Inc. (“PTI”), the Company issued shares of common stock to its subordinated lender. The 1,415,400 shares issued to the subordinated lender included features for the shares to be redeemed at their fair value on the six th or seven th anniversary of the purchase or when the founders group, as defined, no longer owned 75 percent of the shares originally purchased by such group. The shares issued to the subordinated lender were accounted for as redeemable common stock due to the redemption feature being outside of the Company’s control. These shares were recorded initially using their net proceeds and were adjusted to their redemption value each period using a ratable allocation based on the Company’s estimate of the redemption date and fair value of the shares. The Company accreted the redemption value of these shares over the estimated redemption period to the earliest known redemption date with any changes in estimates accounted for prospectively. However, reductions in the redemption value were only recorded to the extent of previously recorded increases. On January 14, 2013, the Company sold 999,999 shares of common stock for $0.167 per share to a group of founding shareholders. An agreement that existed before the closing of the Company's IPO required the Company to redeem these shares if the Company were sold, liquidated or completed an initial public offering for less than $4 per share. These shares were accounted for as redeemable common stock due to the redemption feature being outside of the Company’s control. These shares were recorded initially using their proceeds of $0.167 per share and there was not any accretion of these shares from this initial value because they were already recorded at their redemption value. The redemption value of the shares was $166,667 . Effective upon the closing of the IPO in July 2015, the Company’s 999,999 shares issued to the founder group at $0.167 per share were no longer redeemable as the IPO was completed at a price of more than $4 per share and the Company was no longer required to purchase these shares. Furthermore, the 1,415,400 shares issued to the subordinated lender were also no longer redeemable, effective upon the closing of the IPO, as the subordinated lender agreed to terminate its right to require the Company to repurchase its shares in exchange for the Company granting it certain registration rights. As a result, all of the shares included in redeemable common stock were reclassified to common stock and amounts attributable to redeemable common stock were allocated to common stock at par value and additional paid-in-capital. As of the date immediately before the closing of the IPO, the redemption value of the redeemable shares was estimated to be $13,446,300 which was more than the initial proceeds. As a result, $1,364,031 of accretion was recorded immediately prior to the IPO. The redemption value was calculated based on the offering price of $9.50 per share in the IPO, as the offering closed just after the quarter ended June 28, 2015 and represented the best estimate of enterprise value of the Company.

Stock Incentive Plans

Stock Incentive Plans	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Incentive Plans	Stock Incentive Plans 2013 Stock Incentive Plan The Company’s board of directors approved a stock incentive plan (the “Plan”) in 2013. The Plan permits the Company to grant 495,000 non statutory or incentive stock options to the employees, directors and consultants of the Company. 495,000 shares of unissued common stock are reserved for the Plan. The board of directors has the authority to determine the participants to whom stock options shall be awarded as well as any restrictions to be placed upon the awards. The exercise price cannot be less than the fair value of the underlying shares at the time the stock options are issued and the maximum length of an award is ten years . On July 17, 2013 and January 1, 2014, the board of directors approved the issuance of 375,000 and 120,000 non statutory stock option awards, respectively, to employees of the Company with an exercise price of $3.33 per share with a weighted average grant date fair value of $0.23 and $0.35 per share, respectively. On April 29, 2016, the Company issued 7,200 non statutory stock option awards to employees of the Company with an exercise price of $12.58 and with a weighted average grant date fair value of $2.80 per share. On September 15, 2017, the Company issued 5,000 non statutory stock option awards to employees of the Company with an exercise price of $7.65 per share and with a weighted average grant date fair value of $1.41 per share. All 4 grants of the awards vest 20 percent on the grant date and an additional 20 percent on each of the first, second, third and fourth anniversaries thereafter. Vested awards can only be exercised while the participants are employed by the Company. The fair value of each option award is estimated on the grant date using a Black Scholes option pricing model that uses the weighted average assumptions noted in the following table. The expected volatility is based on the historical volatility of the stock of comparable companies. The expected term of the awards was estimated based on findings from academic studies investigating the average holding period for options adjusted for the Company’s size and risk factors. The risk free rate for periods within the contractual life of the option is based on the United States Treasury yield curve in effect at the time of grant. September 15, 2017 April 29, 2016 January 1, 2014 July 17, 2013 Expected volatility 40.00 % 40.00 % 34.00 % 34.00 % Dividend yield 7.00 % 5.00 % — % — % Expected term (in years) 5 5 4 4 Risk-free rate 1.81 % 1.28 % 1.27 % 0.96 % 2014 Omnibus Performance Award Plan In 2014 the board of directors and stockholders adopted the Unique Fabricating, Inc. 2014 Omnibus Performance Award Plan, or the 2014 Plan. The 2014 Plan provides for the grant of cash awards, stock options, stock appreciation rights, or SARs, shares of restricted stock and restricted stock units, or RSUs, performance shares and performance units. The 2014 Plan originally authorized the grant of awards relating to 250,000 shares of our common stock. In the event of any transaction that causes a change in capitalization, the Compensation Committee, such other committee administering the 2014 Plan or the board of directors will make such adjustments to the number of shares of common stock delivered, and the number and/or price of shares of common stock subject to outstanding awards granted under the 2014 Plan, as it deems appropriate and equitable to prevent dilution or enlargement of participants’ rights. An amendment approved in March of 2016 by our board of directors which was approved by our stockholders at our annual meeting of stockholders in June 2016, increased the number of shares authorized for grant of awards under the 2014 plan to a total of 450,000 shares of our common stock. On August 17, 2015, the board of directors approved the issuance stock option awards for 230,000 shares of which 45,000 shares subject to non statutory options were granted to the board of directors, and 185,000 incentive stock options were granted to employees of the Company. All of the awards had an exercise price of $12.50 per share with a weighted average grant date fair value of $2.72 per share. These awards vest 20 percent on the grant date and an additional 20 percent on each of the first, second, third and fourth anniversaries of the grant date thereafter. Vested awards can only be exercised while the participants are employed by the Company. On November 20, 2015 the board of directors approved the issuance of stock option awards for 15,000 shares to employees of the Company. All of the awards had an exercise price of $11.50 per share with a weighted average grant date fair value of $2.23 per share. The vesting schedule, vesting percentage, and ability of the employees to exercise these options are the same as these for the August 17, 2015 grants described above. On April 29, 2016 the board of directors approved the issuance of stock option awards for 5,000 shares to employees of the Company. All of the awards had an exercise price of $12.58 per share with a weighted average grant date fair value of $2.80 per share. The vesting schedule, vesting percentage, and ability of the employees to exercise these options are the same as these for the November 20 and August 17, 2015 grants described above. On September 15, 2017 the board of directors approved the issuance of stock option awards for 15,000 shares to employees of the Company. All of the awards had an exercise price of $7.65 per share with a weighted average grant date fair value of $1.41 per share. The vesting schedule, vesting percentage, and ability of the employees to exercise these options are the same as these for the November 20, August 17, 2015, and April 29, 2016 grants described above. The fair value of each option award is estimated on the grant date using a Black Scholes option pricing model that uses the weighted average assumptions noted in the following table. The expected volatility is based on the historical volatility of the stock of comparable companies. The expected term of the awards was estimated based on findings from academic studies investigating the average holding period for options adjusted for the Company’s size and risk factors. The risk free rate for periods within the contractual life of the option is based on the United States Treasury yield curve in effect at the time of grant. September 15, 2017 April 29, 2016 November 20, 2015 August 17, 2015 Expected volatility 40.00 % 40.00 % 35.00 % 38.00 % Dividend yield 7.00 % 5.00 % 5.00 % 4.80 % Expected term (in years) 5 5 5 5 Risk-free rate 1.81 % 1.28 % 1.7 % 1.58 % A summary of option activity under both plans is presented below: Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (1) Outstanding at January 1, 2017 629,880 $ 6.76 7.40 Granted 20,000 $ 7.65 10.00 Exercised 47,400 $ 3.33 0 Forfeited or expired — $ — 0 Outstanding at December 31, 2017 602,480 $ 7.06 6.58 $ 216,893 Vested and exercisable at December 31, 2017 467,560 $ 6.11 6.26 $ 612,504 (1) The aggregate intrinsic value above is obtained by subtracting the weighted average exercise price from the estimated fair value of the underlying shares as of December 31, 2017 and multiplying this result by the related number of options outstanding and exercisable at December 31, 2017 . The estimated fair value of the shares is based on the closing stock price of $7.42 as of December 31, 2017 . The Company recorded gross compensation expense of $150,368 for the 52 weeks ended December 31, 2017 , $166,476 for the 52 weeks ended January 1, 2017 , and $205,845 for the 52 weeks ended January 3, 2016 in its consolidated statements of operations, as a component of sales, general and administrative expenses. The income tax benefit related to share based compensation expense was $22,360 for the 52 weeks ended December 31, 2017 , $54,549 for the 52 weeks ended January 1, 2017 , and $64,882 for the 52 weeks ended January 3, 2016 . As of December 31, 2017 , there was $235,289 of total unrecognized compensation cost related to nonvested stock option awards under the plans. That cost is expected to be recognized over a weighted average period of 1.74 years .

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income before income taxes for U.S. and Non-U.S. operations are as follows: Fifty-Two Weeks Ended December 31, 2017 Fifty-Two Weeks Ended January 1, 2017 Fifty-Two Weeks Ended January 3, 2016 U.S. income $ 3,877,650 $ 8,820,049 6,310,039 Non-U.S. income 3,741,921 1,121,690 1,033,223 Income before income taxes $ 7,619,571 $ 9,941,739 $ 7,343,262 The components of the income tax provision included in the consolidated statements of operations are all attributable to continuing operations and are detailed as follows: Fifty-Two Weeks Ended December 31, 2017 Fifty-Two Weeks Ended January 1, 2017 Fifty-Two Weeks Ended January 3, 2016 Current tax expense: Federal $ 1,206,992 $ 3,340,070 $ 2,256,970 State 292,702 355,748 244,253 Foreign 1,185,688 727,450 309,528 Total 2,685,382 4,423,268 2,810,751 Deferred tax expense: Federal (1,165,546 ) (766,716 ) (468,169 ) State (235,622 ) (68,069 ) (41,310 ) Foreign (151,334 ) (330,864 ) 13,052 Total (1,552,502 ) (1,165,649 ) (496,427 ) Total income tax expense $ 1,132,880 $ 3,257,619 $ 2,314,324 Deferred income tax assets and liabilities at December 31, 2017 and January 1, 2017 reflect the effect of temporary differences between amounts of assets, liabilities and equity for financial reporting purposes and the bases of such assets, liabilities and equity as measured based on tax laws, as well as tax loss and tax credit carryforwards. The following table summarizes the components of temporary differences and carryforwards that give rise to deferred tax assets and liabilities: December 31, January 1, Deferred tax assets (liabilities): Allowance for doubtful accounts $ 194,684 $ 224,966 Inventories 118,813 198,130 Accrued payroll and benefits 491,214 776,309 Other 44,820 165,820 Deferred tax asset 849,531 1,365,225 Property, plant, and equipment (2,534,440 ) (3,417,377 ) Goodwill and intangible assets (405,293 ) (1,590,552 ) Deferred tax liability (2,939,733 ) $ (5,007,929 ) Total deferred tax liability $ (2,090,202 ) $ (3,642,704 ) Management evaluates all positive and negative evidence and uses judgment regarding past and future events, including operating results, to help determine when it is more likely than not that all or some portion of the deferred tax assets may not be realized. When appropriate, a valuation allowance is recorded against deferred tax assets to reserve for future tax benefits that may not be realized. On the basis of this evaluation, the Company believes that it is more likely than not that all deferred tax will be realized and this, no valuation allowance was recorded as of December 31, 2017 or January 1, 2017. U.S. income taxes have not been recognized on basis differences in investments that are deemed to be indefinitely reinvested outside the U.S. At December 31, 2017, unremitted earnings have been included in the computation of the transition tax associated with the Tax Act eliminating the basis differences in foreign subsidiaries. The Company remains indefinitely reinvested with respect to its initial investment and any associated potential withholding tax on earnings of its subsidiaries subject to the transition tax, as well as with respect to future earnings that will primarily fund the operations of the subsidiary; however, the Company continues to evaluate its position under SAB 118. As of January 1, 2017 no taxes were provided on basis differences in investments in foreign subsidiaries of $2,183,895 due to the indefinite reinvestment assertion. A reconciliation of taxes on income from continuing operations based on the statutory federal income tax rate to the provision for income taxes is as follows: Fifty-Two Weeks Ended December 31, 2017 Fifty-Two Weeks Ended January 1, 2017 Fifty-Two Weeks Ended January 3, 2016 Income tax expense, computed at 34% of pretax income $ 2,590,654 $ 3,380,191 $ 2,496,709 State income taxes, net of federal benefit 66,607 193,070 133,784 Foreign tax rate differential (206,432 ) (51,388 ) (28,753 ) Impact of U.S. tax reform (1) (559,286 ) — — Research and Development credits (681,957 ) — — Other (76,706 ) (264,254 ) (287,416 ) Total provision for income taxes $ 1,132,880 $ 3,257,619 $ 2,314,324 (1) On December 22, 2017 the Tax Cuts and JOBS Act (the “Act”) was signed into law. The Act changed many aspects of U.S. corporate income taxation and included the reduction of the corporate income tax rate from 35% to 21%. The Act also included implementation of a territorial system and imposition of a one-time tax on deemed repatriated earnings of foreign subsidiaries. We recognized the impact of the Act for the fifty-two weeks ended December 31, 2017 . The impact primarily consists of a $(1,357,472) benefit related to the impact on the U.S. deferred tax liability due to the lowering of the corporate tax rate described above and $798,186 of expense for the estimate for the impact of one-time transition tax on deemed repatriated earnings of foreign subsidiaries. We will continue to assess our provision for income taxes as future guidance becomes available, however we do not currently anticipate significant revisions will be necessary. Any such revisions will be treated in accordance with the measurement period guidance outlined in Staff Accounting Bulletin No. 118. The Act creates a new requirement that certain income such as Global Intangible Low-Taxed Income (“GILTI”) earned by a controlled foreign corporation (“CFC”) must be included in the gross income of the CFC U.S. shareholder. Because of the complexity of the new GILTI rules, we are continuing to evaluate these provisions of the Act and whether taxes due on future U.S. inclusions related to GILTI should be recorded as a current-period expense when incurred, or factored into a company’s measurement of its deferred taxes. As a result, we have not included an estimate of the tax expense or benefit related to this item for the period ended December 31, 2017. The Company recognizes the benefit of a tax position when it is more likely than not, based on the technical merits, that the position will be sustained upon examination. For tax positions meeting the more likely than not threshold, the amount recognized in the financial statements is the largest benefit that has a greater than 50 percent likelihood of being realized upon settlement with the relevant tax authority. The Company assesses all tax positions for which the statute of limitations remain open. The Company had no unrecognized tax benefits as of December 31, 2017 and January 1, 2017 . The Company recognizes any penalties and interest when necessary as income tax expense. There were no penalties or interest recorded during the 52 weeks ended December 31, 2017, January 1, 2017, and January 3, 2016, respectively. The Company files income tax returns in the United States, Mexico, and Canada as well as in various state and local jurisdictions. With few exceptions, the Company is no longer subject to income tax examinations by tax authorities for years before 2015 in the United States and before 2012 in Mexico.

Operating Leases

Operating Leases	12 Months Ended
	Dec. 31, 2017
Leases, Operating [Abstract]
Operating Leases	Operating Leases The Company leases office space, production facilities and equipment under operating leases with various expiration dates through the year 2022. The leases for office space and production facilities require the Company to pay taxes, insurance, utilities and maintenance costs. Five of the leases provide for escalating rents over the life of the lease and rent expense is therefore recognized over the term of the lease on a straight line basis, with the difference between lease payments and rent expense recorded as deferred rent in accrued expenses in the consolidated balance sheets. Total rent expense charged to operations was approximately $2,198,051 for the 52 weeks ended December 31, 2017 , $2,019,073 for the 52 weeks ended January 1, 2017 , and $1,442,155 for the 52 weeks ended January 3, 2016 . Future minimum lease payments required under operating leases that have initial or remaining non-cancelable lease terms in excess of one year are as follows at December 31, 2017 : 2018 $ 2,252,038 2019 1,855,354 2020 1,323,259 2021 510,045 2022 376,878 Thereafter — Total $ 6,317,574

Retirement Plans

Retirement Plans	12 Months Ended
	Dec. 31, 2017
Retirement Benefits [Abstract]
Retirement Plans	Retirement Plans The Company maintains a defined contribution plan covering certain full time salaried employees. Employees can make elective contributions to the plan. The Company contributes 100 percent of an employee’s contribution up to the first 3 percent of each employee’s total compensation and 50 percent for the next 2 percent of each employee’s total compensation. In addition, the Company, at the discretion of the board of directors, may make additional contributions to the plan on behalf of the plan participants. The Company contributed $451,572 for the 52 weeks ended December 31, 2017 , $409,247 for the 52 weeks ended January 1, 2017 , and $368,650 for the 52 weeks ended January 3, 2016 The Intasco operations acquired in April 2016 have separate retirement plans. The United States facility sponsors a SIMPLE IRA account for qualifying employees. The plan makes a contribution equal to 3 percent of a participant's gross wages to the participating employees' SIMPLE IRA accounts. Contributions by Intasco in the United States totaled $3,247 for the 52 weeks ended December 31, 2017 and $3,010 for the 52 weeks ended January 1, 2017 . The Canadian facility sponsors a retirement plan whereby Intasco makes a matching contribution of participant contributions up to a maximum amount based on the participants' number of years of service. Contributions by Intasco in Canada totaled $40,643 for the 52 weeks ended December 31, 2017 and $28,195 for the 52 weeks ended January 1, 2017 .

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2017
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions A stockholder provided subordinated debt financing which is discussed further in Note 6. Effective upon the closing of the IPO, as disclosed in Note 1, this subordinated debt amount was paid off in full with the proceeds received from the IPO. Interest charges were recognized in the amounts of $0 for the 52 weeks ended December 31, 2017 , $0 for the 52 weeks ended January 1, 2017 , and $1,514,901 for the 52 weeks ended January 3, 2016 related to the subordinated debt financing. Effective March 18, 2013, the Company is under a five year management agreement with a firm related to several stockholders. The agreement initially provided for annual management fees of $300,000 and additional fees for assistance provided with acquisitions. Effective upon completion of the IPO, the agreement was amended to reduce the annual management fee by an amount equal to the amount, if any, of annual cash retainers and equity awards received as compensation for service on the board of directors by any person who is a related person of Taglich Private Equity, LLC or Taglich Brothers, Inc. The Company incurred management fees of $225,000 for the 52 weeks ended December 31, 2017 , $225,000 for the 52 weeks ended January 1, 2017 , and $275,000 for the 52 weeks ended January 3, 2016 . During the 52 weeks ended January 1, 2017 , the Company incurred additional management fees related to the acquisition of Intasco on April 29, 2016 of $259,000 . During the 52 weeks ended January 3, 2016 , the Company incurred additional management fees related to the acquisition of Great Lakes on August 31, 2015 of $220,000 . The Company allocates these fees to the services provided based on their relative fair values. The fees paid were all allocated to and expensed as transaction costs. Taglich Brothers, Inc. acted as Joint Book Running Manager and a co-representative of the underwriters of our IPO. Taglich Brothers, Inc. received underwriting discounts and commissions of $ 975,603 in the IPO during the 52 weeks ended January 3, 2016 . As mentioned in Note 1, upon closing of the IPO, the Company issued to the underwriters warrants to purchase up to 141,000 shares of common stock, as additional compensation. Taglich Brothers, Inc. was issued 70,500 of these warrants during the 52 weeks ended January 3, 2016 . The Company also paid certain expenses and disbursements of the underwriters, which included legal fees, road show expenses, and non accountable expenses. The Company paid $ 141,684 of these expenses on behalf of or to Taglich Brothers, Inc. during the 52 weeks ended January 3, 2016 .

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Financial instruments consist of cash equivalents, accounts receivable, accounts payable and debt. The carrying amount of all significant financial instruments approximates fair value due to either the short maturity or the existence of variable interest rates that approximate prevailing market rates. Accounting standards require certain other items be reported at fair value in the financial statements and provides a framework for establishing that fair value. The framework for determining fair value is based on a hierarchy that prioritizes the valuation techniques and inputs used to measure fair value. Fair values determined by Level 1 inputs use quoted prices in active markets for identical assets or liabilities that the Company has the ability to access. Fair values determined by Level 2 inputs use other inputs that are observable, either directly or indirectly. Level 2 inputs may include quoted prices for similar items in active markets, and other inputs such as interest rates and yield curves that are observable at commonly quoted intervals. Level 3 inputs are unobservable inputs, including inputs that are available in situations where there is little, if any, market activity for the related item. Level 3 fair value measurements are based primarily on management’s own estimates using inputs such as pricing models, discounted cash flow methodologies or similar techniques taking into account the characteristics of the item. In instances whereby inputs used to measure fair value fall into different levels of the fair value hierarchy, fair value measurements in their entirety are categorized based on the lowest level input that is significant to the valuation. The Company’s assessment of the significance of particular inputs to these fair value measurements requires judgment and considers factors specific to each item. The Company measures its interest rate swap at fair value on a recurring basis based primarily on Level 2 inputs using an income model based on disparity between variance and fixed interest rates, the scheduled balance of principal outstanding, yield curves and other information readily available in the market. The Company measures its foreign currency forward contract on a recurring basis based primarily on Level 2 inputs using the present value of future cash flows to be incurred on the contracts. In accordance with market standards and conventions for valuing such contracts, the transactions reflect the current direction and amounts expected in each currency, spot exchange rates at period-end, discount factors and forward interest rate curves for each relevant currency pair and future maturity date. This forward contract expired in fiscal year 2017.

Contingencies

Contingencies	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies The Company is engaged from time to time in legal matters and proceedings arising out of its normal course of business. The Company establishes a liability related to its legal proceedings and claims when it has determined that it is probable that the Company has incurred a liability and the related amount can be reasonably estimated. If the Company determines that an obligation is reasonably possible, the Company will, if material, disclose the nature of the loss contingency and the estimated range of possible loss, or include a statement that no estimate of loss can be made. While uncertainties are inherent in the final outcome of such matters, the Company believes that there are no pending proceedings in which the Company is currently involved that will have a material effect on its financial position, results of operations or cash flow.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Basic earnings per share is computed by dividing the net income by the weighted-average number of shares outstanding during the period. Diluted earnings per share is computed giving effect to all potentially weighted average dilutive shares including stock options and warrants. The dilutive effect of outstanding awards, if any, is reflected in diluted earnings per share by application of the treasury stock method. The following table sets forth the computation of basic and diluted earnings per share. Fifty-Two Weeks Ended December 31, 2017 Fifty-Two Weeks Ended January 1, 2017 Fifty-Two Weeks Ended January 3, 2016 Basic earnings per share calculation: Net income $ 6,486,691 $ 6,684,120 $ 5,028,938 Net income attributable to common stockholders $ 6,486,691 $ 6,684,120 $ 5,028,938 Weighted average shares outstanding 9,750,948 9,678,316 8,174,418 Net income per share-basic $ 0.67 $ 0.69 $ 0.62 Diluted earnings per share calculation: Net income $ 6,486,691 $ 6,684,120 $ 5,028,938 Weighted average shares outstanding 9,750,948 9,678,316 8,174,418 Effect of dilutive securities: Stock options (1)(2)(3) 147,316 204,948 203,665 Warrants (1)(2)(3) 1,154 13,019 48,855 Diluted weighted average shares outstanding 9,899,418 9,896,283 8,426,938 Net income per share-diluted $ 0.66 $ 0.68 $ 0.60 (1) Options to purchase 345,280 shares of common stock remaining to be exercised under the 2013 plan, and warrants to purchase 1,185 shares of common stock remaining to be exercised, were considered in the computation of diluted earnings per share using the treasury stock method in the 2017 calculation. Options to purchase 225,000 shares of common stock that were granted in August 2015 and November 2015 remaining to be exercised, as discussed in Note 10, under the 2014 plan, options to purchase 7,200 shares of common stock and 5,000 shares of common stock that were granted under the 2013 and 2014 plan, respectively, in April 2016, 5,000 and 15,000 shares of common stock that were granted under the 2013 and 2014 plan, respectively, in September 2017, and warrants to purchase 141,000 shares of common stock issued to the underwriters of the Company's IPO in July 2015, were not included in the computation of diluted earnings per share in the 2017 period because the effect would have been anti-dilutive. (2) Options to purchase 392,680 shares of common stock remaining to be exercised under the 2013 plan, warrants to purchase 2,286 shares of common stock remaining to be exercised, warrants to purchase 141,000 shares issued to the underwriters in July 2015 as noted in Note 1, and options to purchase 15,000 shares of common stock that were granted in August 2015, as discussed in Note 10 under the 2014 plan, were considered in the computation of diluted earnings per share using the treasury stock method in the 2016 calculation. Options to purchase 210,000 shares of common stock that were granted on January 1, 2014 remaining to be exercised under the 2013 plan and 12,200 shares of common stock that were granted under the 2013 and 2014 plan in April 2016 as noted in Note 10, were not included in the computation of diluted earnings per share in the 2016 period because the effect would have been anti-dilutive. (3) Options to purchase 450,000 shares of common stock remaining to be exercised,warrants to purchase 24,504 shares of common stock remaining to be exercised and warrants to purchase 141,000 shares issued to the underwriters granted in July 2015, as noted in Note 1, were considered in the computation of diluted earnings per share using the treasury stock method in the 2015 calculation. Options to purchase 245,000 shares of common stock that were granted in August 2015 and November 2015 under the 2014 plan, as noted in Note 10, were not included in the computation of diluted earnings per share in the 2015 period because the effect would have been anti-dilutive.

Selected Quarterly Financial Da

Selected Quarterly Financial Data (unaudited)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Selected Quarterly Financial Data (unaudited)	Selected Quarterly Financial Data (unaudited) The following tables set forth a condensed summary of the Company's unaudited selected quarterly results for each of the quarters in fiscal 2017 and 2016. Thirteen Weeks Ended April 2, 2017 Thirteen Weeks Ended July 2, 2017 Thirteen Weeks Ended October 1, 2017 Thirteen Weeks Ended December 31, 2017 2017 Net sales $ 47,857,096 $ 44,518,039 $ 41,231,366 $ 41,681,481 Gross profit $ 11,107,161 $ 10,666,091 $ 8,974,926 $ 9,305,356 Operating income 3,515,457 3,070,774 1,706,114 1,994,325 Net income $ 2,046,837 $ 1,668,410 $ 715,106 $ 2,056,338 Net income per share Basic $ 0.21 $ 0.17 $ 0.07 $ 0.21 Diluted $ 0.21 $ 0.17 $ 0.07 $ 0.21 Thirteen Weeks Ended April 3, 2016 Thirteen Weeks Ended July 3, 2016 Thirteen Weeks Ended October 2, 2016 Thirteen Weeks Ended January 1, 2017 2016 Net sales $ 39,982,504 $ 42,048,220 $ 44,753,565 $ 43,678,664 Gross profit $ 9,599,946 $ 9,091,238 $ 11,250,348 $ 9,602,935 Operating income $ 3,010,291 $ 1,926,252 $ 4,301,314 $ 2,747,103 Net income $ 1,833,651 $ 599,172 $ 2,520,199 $ 1,731,098 Net income per share Basic $ 0.19 $ 0.06 $ 0.26 $ 0.18 Diluted $ 0.19 $ 0.06 $ 0.25 $ 0.17

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2017
Subsequent Events [Abstract]
Subsequent Event	Subsequent Events Declaration of Cash Dividend On February 16, 2018, our board of directors declared a quarterly cash dividend of $0.15 per common share. The dividend will be payable on March 7, 2018 to shareholders of record at the close of business on February 28, 2018 for an amount of approximately $1.5 million.

Nature of Business and Signif26

Nature of Business and Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Basis of Presentation	The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The accompanying consolidated financial statements have been prepared by the Company, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”).
Principles of Consolidation	The consolidated financial statements include the accounts of the Company and all subsidiaries over which the Company exercises control. All intercompany transactions and balances have been eliminated upon consolidation.
Fiscal Years	The Company’s year-end periods end on the Sunday closest to the end of the calendar year-end period. The 52-week fiscal year periods for 2017, 2016, and 2015 ended on December 31, 2017 , January 1, 2017 , and January 3, 2016 , respectively.
Cash and Cash Equivalents and Accounts Payable	Under the Company’s cash management system, checks issued but not yet presented to the Company’s bank frequently result in overdraft balances for accounting purposes and are classified as accounts payable on the consolidated balance sheets. The Company considers all highly liquid investments with an original maturity of three months or less to be cash and cash equivalents.
Accounts Receivable	Accounts receivable are stated at the invoiced amount and do not bear interest. The allowance for doubtful accounts is management’s best estimate of the amount of probable credit losses in the existing accounts receivable. Management determines the allowance based on historical write off experience and an understanding of individual customer payment history and financial condition. Management reviews the allowance for doubtful accounts at regular intervals. Account balances are charged off against the allowance when management determines it is probable the receivable will not be recovered.
Inventory	Inventory is stated at the lower of cost or market, with cost determined on the first in, first out method (FIFO). Inventory acquired as part of a business combination is recorded at its estimated fair value at the time of the business combination. The Company periodically evaluates inventory for obsolescence, excess quantities, slow moving goods and other impairments of value and establishes reserves for any identified impairments.
Valuation of Long-Lived Assets	The carrying value of long-lived assets held for use is periodically evaluated when events or circumstances warrant such a review. The carrying value of a long-lived asset held for use is considered impaired when the anticipated separately identifiable undiscounted cash flows from the asset are less than the carrying value of the asset. In that event, a loss is recognized based on the amount by which the carrying value exceeds the fair value of the long-lived asset.
Property, Plant, and Equipment	Property, plant, and equipment purchases are recorded at cost. Property, plant, and equipment acquired as part of a business combination are recorded at estimated fair value at the time of the business combination. Depreciation is calculated principally using the straight line method over the estimated useful life of each asset. Leasehold improvements are depreciated over the shorter of the estimated useful life of the asset or the period of the related leases. Upon retirement or disposal, the initial cost or valuation and accumulated depreciation are removed from the accounts, and any gain or loss is included in net income. Repair and maintenance costs are expensed as incurred.
Intangible Assets	The Company does not hold any intangible assets with indefinite lives. Identifiable intangible assets recognized as part of a business combination are recorded at their estimated fair value at the time of the business combination. Amortizable intangible assets are reviewed for impairment whenever events or circumstances indicate that the related carrying amount may be impaired. The remaining useful lives of intangible assets are reviewed annually to determine whether events and circumstances warrant a revision to the remaining period of amortization.
Goodwill	Goodwill represents the excess of the acquisition cost of consideration transferred over the fair value of the identifiable net assets acquired and liabilities assumed from business combinations at the date of acquisition. Goodwill is not amortized, but rather is assessed at least on an annual basis for impairment. If it is determined that it is more likely than not that the fair value is greater than the carrying value of a reporting unit then a qualitative assessment may be used for the annual impairment test. Otherwise, a one-step process is used which requires estimating the fair value of each reporting unit compared to its carrying value. If the carrying value exceeds the estimated fair value, goodwill impairment will be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill.
Debt Issuance Costs	Debt issuance costs represent legal, consulting, and other financial costs associated with debt financing and are reported netted against the related debt instrument. Amounts paid to or on behalf of lenders are presented as debt discount, as a reduction of the noted debt instrument. Debt issuance costs on term debt are amortized using the straight lines basis over the term of the related debt (which is immaterially different from the required effective interest method) while those related to revolving debt are amortized using a straight line basis over the term of the related debt.
Investments	Investments in entities in which the Company has less than a 20 percent interest or is not able to exercise significant influence are carried at cost. Cost basis investments acquired are recorded at cost. Dividends received are included in income, except for those dividends received in excess of the Company’s proportionate share of accumulated earnings, which are applied as a reduction of the cost of the investment. Impairment losses due to a decline in the value of the investment that is other than temporary are recognized when incurred.
Stock Based Compensation	The Company accounts for its stock based compensation using the fair value of the award estimated at the grant date of the award. The Company estimates the fair value of awards, consisting of stock options, using the Black Scholes option pricing model. Compensation expense is recognized in earnings using the straight line method over the vesting period, which represents the requisite service period.
Revenue Recognition	Revenue is recognized by the Company upon shipment to customers when the customer takes ownership and assumes the risk of loss, collection of the relevant receivable is probable, persuasive evidence of an arrangement exists, and the sale price is fixed and determinable. Provisions for discounts and rebates to customers, estimated returns and allowances, and other adjustments are provided for in the same period the related sales are recorded.
Shipping and Handling	Shipping and handling costs are included in cost of sales as they are incurred.
Income Taxes	A current tax liability or asset is recognized for the estimated taxes payable or refundable on tax returns for the period. Deferred tax liabilities or assets are recognized for the estimated future tax effects of temporary differences between financial reporting and tax accounting measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The Company also evaluates the need for valuation allowances to reduce the deferred tax assets to realizable amounts. Management evaluates all positive and negative evidence and uses judgment regarding past and future events, including operating results, to help determine when it is more likely than not that all or some portion of the deferred tax assets may not be realized. When appropriate, a valuation allowance is recorded against deferred tax assets to reserve for future tax benefits that may not be realized. The Company recognizes the benefit of a tax position when it is more likely than not, based on the technical merits, that the position will be sustained upon examination. For tax positions meeting the more likely than not threshold, the amount recognized in the financial statements is the largest benefit that has a greater than 50 percent likelihood of being realized upon settlement with the relevant tax authority. The Company assesses all tax positions for which the statute of limitations remain open.
Foreign Currency Adjustments/Foreign Currency Exchange	The expression of assets and liabilities in a currency other than the functional currency, which is the United States dollar, gives rise to exchange gains and losses when such assets and obligations are paid in another currency. Foreign currency exchange rate adjustments (i.e., differences between amounts recorded and actual amounts owed or paid) are reported in the consolidated statements of operations as the foreign currency fluctuations occur. Foreign currency exchange rate adjustments are reported in the consolidated statements of cash flows using the exchange rates in effect at the time of the cash flows. At December 31, 2017 , the Company’s exposure to assets and liabilities denominated in another currency was not significant. To the extent there is a fluctuation in the exchange rates, the amount of local currency to be paid or received to satisfy foreign currency obligations in 2017 may increase or decrease. The Company’s functional currency for all operations worldwide is the United States dollar. Nonmonetary assets and liabilities of foreign operations are remeasured at historical rates and monetary assets and liabilities are remeasured at exchange rates in effect at the end of each reporting period. Income statement accounts are remeasured at average exchange rates for the year. Gains and losses from translation of foreign currency financial statements into United States dollars are classified in other income in the consolidated statements of operations.
Derivative financial instruments	All derivative instruments are required to be reported on the consolidated balance sheets at fair value unless the transactions qualify and are designated as normal purchases or sales. Changes in fair value are reported currently through earnings unless they meet hedge accounting criteria.
Use of Estimates	The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.
Recently Issued Accounting Pronouncements	In April 2015, the Financial Accounting Standards Board (the “FASB”) issued ASU 2015-03, Interest-Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs . Previously, such costs were required to be presented as a non-current asset in an entity's balance sheet and amortized into interest expense over the term of the related debt instrument. The changes implemented by the ASU require that debt issuance costs be presented in the entity's balance sheet as a direct deduction from the carrying value of the related debt liability. The amortization of debt issuance costs remains unchanged per the ASU. The Company adopted this ASU during 2016 and applied this change to the current and prior periods in the financial statements for comparison purposes. Debt issuance costs are no longer disclosed separately by the Company in the balance sheet and are now shown as a direct deduction from the carrying value of the related debt liability. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers . This ASU supersedes most of the existing guidance on revenue recognition in ASC Topic 605, Revenue Recognition and establishes a broad principle that would require an entity to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve this principle, an entity identifies the contract with a customer, identifies the separate performance obligations in the contract, determines the transaction price, allocates the transaction price to the separate performance obligations and recognizes revenue when each separate performance obligation is satisfied. In August 2015, the FASB issued ASU 2015-14, Revenue From Contracts with Customers (Topic 606): Deferral of the Effective Date to defer implementation of 2014-09 by one year. The guidance is now currently effective for fiscal years beginning after December 15, 2018 and is to be applied retrospectively at the entity's election either to each prior reporting period presented or with the cumulative effect of application recognized at the date of initial application. The ASU allows for early adoption for fiscal years beginning after December 15, 2016, however, the Company is currently evaluating the impact that the adoption of this guidance will have on its consolidated financial statements. The Company plans to adopt the new accounting standard ASC 606, Revenue from Contracts with Customers and all the related amendments to all contracts using the modified retrospective method. In November 2015, the FASB issued ASU 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes. Currently, deferred income tax liabilities and assets are required to be separated into current and noncurrent amounts in an entity's balance sheet. The changes implemented by the ASU require that all deferred income tax liabilities and assets are to be classified as noncurrent on the balance sheet. The ASU is effective for the Company for financial statements issued for fiscal years beginning after December 15, 2017, with early adoption permitted. The Company adopted this ASU during the first quarter of 2016 and applied the change to only these 2016 periods in the consolidated financial statements as the prior year periods were not retrospectively adjusted. Deferred taxes are now shown as non-current by the Company in the consolidated balance sheet. In February 2016, the FASB issued ASU 2016-02, Leases , which will supersede the current lease requirements in Topic 850. The ASU requires lessees to recognize a right of use asset and related lease liability for all leases, with a limited exception for short-term leases. Leases will be classified as either finance or operating, with the classification affecting the pattern of expense recognition in the statement of operations. Currently, leases are classified as either capital or operating, with only capital leases recognized on the balance sheet. The reporting of lease related expenses in the consolidated statements of operations and cash flows will be generally consistent with current guidance. The ASU is effective for the Company for financial statements issued for fiscal years beginning after December 15, 2019. The Company believes the impact that the adoption of this guidance will have on its consolidated financial statements will be to materially increase assets and liabilities on the consolidated balance sheet, but it is not expected to materially impact the consolidated statements of operations. In March 2016, the FASB issued ASU 2016-09, Compensation-Stock Compensation (Topic 718): Improvement to Employee Share-based Payment Accounting(ASU 2016-09) , to simplify the accounting for share-based payment transactions. The ASU is effective for the Company for financial statements issued for fiscal years beginning after December 15, 2017. The Company early adopted this ASU during 2016 and applied the change to this period and future periods in the consolidated financial statements. Excess tax benefits are no longer disclosed in the consolidated statements of cash flows as a result of this early adoption and are also recognized as income tax expense in the income statement. The Company adopted the provisions related to forfeitures as well to record actual forfeitures as they occur, and the impact on our consolidated balance sheet as of all years presented was immaterial. In January 2017, the FASB issued ASU 2017-4, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment, accounting guidance which removes Step 2 of the goodwill impairment test. Goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. The ASU is effective for annual or interim reporting periods beginning after December 15, 2021. Early adoption is permitted. The Company adopted the provisions related to this ASU during fiscal year 2017 and the impact

Business Combinations (Tables)

Business Combinations (Tables)	12 Months Ended
	Dec. 31, 2017
Business Acquisition [Line Items]
Schedule of Pro Forma Information	The following unaudited pro forma supplementary data for the 52 weeks ended January 1, 2017 and 52 weeks ended January 3, 2016 give effect to the acquisition of Intasco as if it had occurred on January 5, 2015 (the first day of the Company's 2015 fiscal year) and Great Lakes as if it had occurred on December 30, 2013 (the first day of the Company’s 2014 fiscal year), The unaudited pro forma supplementary data is provided for informational purposes only and should not be construed to be indicative of the Company’s results of operations had the acquisition been consummated on the date assumed and does not project the Company’s results of operations for any future date. Fifty-Two Weeks Ended January 1, 2017 Fifty-Two Weeks Ended January 3, 2016 (Unaudited) (Unaudited) Net sales $ 176,309,480 $ 167,208,908 Net income $ 6,460,512 $ 6,505,410 Net income per common share – basic $ 0.67 $ 0.80 Net income per common share – diluted $ 0.65 $ 0.77
Intasco
Business Acquisition [Line Items]
Schedule of Business Acquisitions by Acquisition	The following table summarizes the acquisition date fair values of the assets acquired and liabilities assumed. Cash $ 18,250 Accounts receivable 2,146,082 Inventory 2,485,781 Other current assets 74,194 Property, plant, and equipment 861,491 Identifiable intangible assets 7,316,694 Accounts payable and accrued liabilities (716,080 ) Deferred tax liabilities (97,622 ) Total identifiable net assets 12,088,790 Goodwill 9,657,221 Total $ 21,746,011
Great Lakes Foam Technologies, Inc.
Business Acquisition [Line Items]
Schedule of Business Acquisitions by Acquisition	The following table summarizes the acquisition date fair values of the assets acquired and liabilities assumed. Accounts receivable $ 1,001,005 Inventory 1,115,809 Deferred tax assets 1,468 Other current assets 2,500 Property, plant, and equipment 810,001 Identifiable intangible assets 5,915,000 Accounts payable and accrued liabilities (928,933 ) Total identifiable net assets 7,916,850 Goodwill 4,030,542 Total $ 11,947,392

Inventory (Tables)

Inventory (Tables)	12 Months Ended
	Dec. 31, 2017
Inventory Disclosure [Abstract]
Schedule of Inventory	Inventory consists of the following: December 31, January 1, Raw materials $ 9,005,335 $ 9,513,980 Work in progress 578,056 623,504 Finished goods 6,746,693 6,594,124 Total inventory $ 16,330,084 $ 16,731,608

Property, Plant, and Equipment

Property, Plant, and Equipment (Tables)	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Schedule of Property, Plant and Equipment	Property, plant, and equipment consists of the following: December 31, January 1, Depreciable Life – Years Land $ 1,663,153 $ 1,663,153 Buildings 7,606,125 7,541,976 23 – 40 Shop equipment 16,654,811 13,003,025 7 – 10 Leasehold improvements 997,277 913,097 3 – 10 Office equipment 1,442,082 1,188,746 3 – 7 Mobile equipment 223,474 218,743 3 Construction in progress 1,253,760 1,425,090 Total cost 29,840,682 25,953,830 Accumulated depreciation 6,865,281 4,755,908 Net property, plant, and equipment $ 22,975,401 $ 21,197,922

Intangible Assets (Tables)

Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets	Intangible assets of the Company consist of the following at December 31, 2017 : Gross Carrying Amount Accumulated Amortization Weighted Average Life – Years Customer contracts $ 26,523,065 $ 11,588,946 8.16 Trade names 4,673,044 1,160,569 16.43 Non-compete agreements 1,161,790 995,233 2.53 Unpatented technology 1,534,787 512,156 5.00 Total $ 33,892,686 $ 14,256,904 Intangible assets of the Company consist of the following at January 1, 2017 : Gross Carrying Accumulated Weighted Average Customer contracts $ 26,523,065 $ 8,240,853 8.16 Trade names 4,673,044 868,866 16.43 Non-compete agreements 1,161,790 818,585 2.53 Unpatented technology 1,534,787 206,040 5.00 Total $ 33,892,686 $ 10,134,344
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	Estimated amortization expense is as follows: 2018 $ 4,070,321 2019 3,945,264 2020 3,913,627 2021 2,455,712 2022 1,305,314 Thereafter 3,945,544 Total $ 19,635,782

Long-term Debt (Tables)

Long-term Debt (Tables)	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Schedule of Long-Term Debt	Long term debt consists of the following: December 31, January 1, US Term Loan, payable to lenders in quarterly installments of $318,750 through March 31, 2018, $425,000 through March 31, 2019, and $531,250 through March 31, 2021, with a lump sum due at maturity. The effective interest rate was 5.069% per annum at December 31, 2017. At December 31, 2017 the balance of the US Term Loan is presented net of a debt discount of $139,588 from costs paid to or on behalf of the lenders. $ 14,060,065 $ 15,862,309 US Term Loan II, payable to lenders in quarterly installments of $200,000 through March 31, 2021, with a lump sum due at maturity. The effective interest rate was 5.069% per annum at December 31. At December 31, 2017, the balance of the US Term Loan II is presented net of a debt discount of $33,602 from costs paid to or on behalf of the lenders. 3,566,398 — CA Term Loan, payable to lenders in quarterly installments of $281,250 through March 31, 2018, $375,000 through March 31, 2019, and $468,750 through March 31, 2021, with a lump sum due at maturity. The effective interest rate was 5.069% per annum at December 31, 2017. At December 31, 2017 the balance of the CA Term Loan is presented net of a debt discount of $68,869 from costs paid to or on behalf of the lenders. 12,962,381 14,066,732 Note payable to the seller of former owner of business Unique acquired in 2014 which is unsecured and subordinated to the New Credit Agreement. Interest accrues monthly at an annual rate of 6 percent. The note payable is due in full on February 6, 2019. 500,000 500,000 Other debt — 5,446 Total debt excluding revolver 31,088,844 30,434,487 Less current maturities 3,799,998 2,405,446 Long-term debt – Less current maturities $ 27,288,846 $ 28,029,041
Schedule of Maturities of Long-Term Debt	Maturities on the Company’s Revolver and other long term debt obligations for the remainder of the current fiscal year and future fiscal years: 2018 $ 3,800,000 2019 5,100,000 2020 4,800,000 2021 40,339,473 2022 — Thereafter — Total 54,039,473 Discounts (242,059 ) Debt issuance costs (232,045 ) Total debt – Net $ 53,565,369

Restructuring (Tables)

Restructuring (Tables)	12 Months Ended
	Dec. 31, 2017
Restructuring and Related Activities [Abstract]
Schedule of Restructuring Liability	The tables below summarize the activity in the restructuring liability for the 52 weeks ended January 1, 2017 . Employee Termination Benefits Liability Other Exit Costs Liability Total Accrual balance at January 3, 2016 $ 190,864 $ 63,327 $ 254,191 Provision for estimated expenses incurred during the year (51,951 ) 87,005 35,054 Payments made during the year (138,913 ) (150,332 ) (289,245 ) Accrual balance at January 1, 2017 $ — $ — $ —

Stock Incentive Plans (Tables)

Stock Incentive Plans (Tables)	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	The fair value of each option award is estimated on the grant date using a Black Scholes option pricing model that uses the weighted average assumptions noted in the following table. The expected volatility is based on the historical volatility of the stock of comparable companies. The expected term of the awards was estimated based on findings from academic studies investigating the average holding period for options adjusted for the Company’s size and risk factors. The risk free rate for periods within the contractual life of the option is based on the United States Treasury yield curve in effect at the time of grant. September 15, 2017 April 29, 2016 January 1, 2014 July 17, 2013 Expected volatility 40.00 % 40.00 % 34.00 % 34.00 % Dividend yield 7.00 % 5.00 % — % — % Expected term (in years) 5 5 4 4 Risk-free rate 1.81 % 1.28 % 1.27 % 0.96 % The fair value of each option award is estimated on the grant date using a Black Scholes option pricing model that uses the weighted average assumptions noted in the following table. The expected volatility is based on the historical volatility of the stock of comparable companies. The expected term of the awards was estimated based on findings from academic studies investigating the average holding period for options adjusted for the Company’s size and risk factors. The risk free rate for periods within the contractual life of the option is based on the United States Treasury yield curve in effect at the time of grant. September 15, 2017 April 29, 2016 November 20, 2015 August 17, 2015 Expected volatility 40.00 % 40.00 % 35.00 % 38.00 % Dividend yield 7.00 % 5.00 % 5.00 % 4.80 % Expected term (in years) 5 5 5 5 Risk-free rate 1.81 % 1.28 % 1.7 % 1.58 %
Schedule of Share-based Compensation, Stock Options and Stock Appreciation Rights Award Activity	A summary of option activity under both plans is presented below: Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (1) Outstanding at January 1, 2017 629,880 $ 6.76 7.40 Granted 20,000 $ 7.65 10.00 Exercised 47,400 $ 3.33 0 Forfeited or expired — $ — 0 Outstanding at December 31, 2017 602,480 $ 7.06 6.58 $ 216,893 Vested and exercisable at December 31, 2017 467,560 $ 6.11 6.26 $ 612,504 (1) The aggregate intrinsic value above is obtained by subtracting the weighted average exercise price from the estimated fair value of the underlying shares as of December 31, 2017 and multiplying this result by the related number of options outstanding and exercisable at December 31, 2017 . The estimated fair value of the shares is based on the closing stock price of $7.42 as of December 31, 2017 .

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Schedule of Income Before Income Tax, Domestic and Foreign	Income before income taxes for U.S. and Non-U.S. operations are as follows: Fifty-Two Weeks Ended December 31, 2017 Fifty-Two Weeks Ended January 1, 2017 Fifty-Two Weeks Ended January 3, 2016 U.S. income $ 3,877,650 $ 8,820,049 6,310,039 Non-U.S. income 3,741,921 1,121,690 1,033,223 Income before income taxes $ 7,619,571 $ 9,941,739 $ 7,343,262
Schedule of Components of Income Tax Expense (Benefit)	The components of the income tax provision included in the consolidated statements of operations are all attributable to continuing operations and are detailed as follows: Fifty-Two Weeks Ended December 31, 2017 Fifty-Two Weeks Ended January 1, 2017 Fifty-Two Weeks Ended January 3, 2016 Current tax expense: Federal $ 1,206,992 $ 3,340,070 $ 2,256,970 State 292,702 355,748 244,253 Foreign 1,185,688 727,450 309,528 Total 2,685,382 4,423,268 2,810,751 Deferred tax expense: Federal (1,165,546 ) (766,716 ) (468,169 ) State (235,622 ) (68,069 ) (41,310 ) Foreign (151,334 ) (330,864 ) 13,052 Total (1,552,502 ) (1,165,649 ) (496,427 ) Total income tax expense $ 1,132,880 $ 3,257,619 $ 2,314,324
Schedule of Current and Noncurrent deferred taxes	December 31, January 1, Deferred tax assets (liabilities): Allowance for doubtful accounts $ 194,684 $ 224,966 Inventories 118,813 198,130 Accrued payroll and benefits 491,214 776,309 Other 44,820 165,820 Deferred tax asset 849,531 1,365,225 Property, plant, and equipment (2,534,440 ) (3,417,377 ) Goodwill and intangible assets (405,293 ) (1,590,552 ) Deferred tax liability (2,939,733 ) $ (5,007,929 ) Total deferred tax liability $ (2,090,202 ) $ (3,642,704 )
Schedule of Income Taxes Based on Federal Tax Rate	A reconciliation of taxes on income from continuing operations based on the statutory federal income tax rate to the provision for income taxes is as follows: Fifty-Two Weeks Ended December 31, 2017 Fifty-Two Weeks Ended January 1, 2017 Fifty-Two Weeks Ended January 3, 2016 Income tax expense, computed at 34% of pretax income $ 2,590,654 $ 3,380,191 $ 2,496,709 State income taxes, net of federal benefit 66,607 193,070 133,784 Foreign tax rate differential (206,432 ) (51,388 ) (28,753 ) Impact of U.S. tax reform (1) (559,286 ) — — Research and Development credits (681,957 ) — — Other (76,706 ) (264,254 ) (287,416 ) Total provision for income taxes $ 1,132,880 $ 3,257,619 $ 2,314,324 (1) On December 22, 2017 the Tax Cuts and JOBS Act (the “Act”) was signed into law. The Act changed many aspects of U.S. corporate income taxation and included the reduction of the corporate income tax rate from 35% to 21%. The Act also included implementation of a territorial system and imposition of a one-time tax on deemed repatriated earnings of foreign subsidiaries. We recognized the impact of the Act for the fifty-two weeks ended December 31, 2017 . The impact primarily consists of a $(1,357,472) benefit related to the impact on the U.S. deferred tax liability due to the lowering of the corporate tax rate described above and $798,186 of expense for the estimate for the impact of one-time transition tax on deemed repatriated earnings of foreign subsidiaries. We will continue to assess our provision for income taxes as future guidance becomes available, however we do not currently anticipate significant revisions will be necessary. Any such revisions will be treated in accordance with the measurement period guidance outlined in Staff Accounting Bulletin No. 118. The Act creates a new requirement that certain income such as Global Intangible Low-Taxed Income (“GILTI”) earned by a controlled foreign corporation (“CFC”) must be included in the gross income of the CFC U.S. shareholder. Because of the complexity of the new GILTI rules, we are continuing to evaluate these provisions of the Act and whether taxes due on future U.S. inclusions related to GILTI should be recorded as a current-period expense when incurred, or factored into a company’s measurement of its deferred taxes. As a result, we have not included an estimate of the tax expense or benefit related to this item for the period ended December 31, 2017.

Operating Leases (Tables)

Operating Leases (Tables)	12 Months Ended
	Dec. 31, 2017
Leases, Operating [Abstract]
Schedule of Future Minimum Lease Payments	Future minimum lease payments required under operating leases that have initial or remaining non-cancelable lease terms in excess of one year are as follows at December 31, 2017 : 2018 $ 2,252,038 2019 1,855,354 2020 1,323,259 2021 510,045 2022 376,878 Thereafter — Total $ 6,317,574

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table sets forth the computation of basic and diluted earnings per share. Fifty-Two Weeks Ended December 31, 2017 Fifty-Two Weeks Ended January 1, 2017 Fifty-Two Weeks Ended January 3, 2016 Basic earnings per share calculation: Net income $ 6,486,691 $ 6,684,120 $ 5,028,938 Net income attributable to common stockholders $ 6,486,691 $ 6,684,120 $ 5,028,938 Weighted average shares outstanding 9,750,948 9,678,316 8,174,418 Net income per share-basic $ 0.67 $ 0.69 $ 0.62 Diluted earnings per share calculation: Net income $ 6,486,691 $ 6,684,120 $ 5,028,938 Weighted average shares outstanding 9,750,948 9,678,316 8,174,418 Effect of dilutive securities: Stock options (1)(2)(3) 147,316 204,948 203,665 Warrants (1)(2)(3) 1,154 13,019 48,855 Diluted weighted average shares outstanding 9,899,418 9,896,283 8,426,938 Net income per share-diluted $ 0.66 $ 0.68 $ 0.60 (1) Options to purchase 345,280 shares of common stock remaining to be exercised under the 2013 plan, and warrants to purchase 1,185 shares of common stock remaining to be exercised, were considered in the computation of diluted earnings per share using the treasury stock method in the 2017 calculation. Options to purchase 225,000 shares of common stock that were granted in August 2015 and November 2015 remaining to be exercised, as discussed in Note 10, under the 2014 plan, options to purchase 7,200 shares of common stock and 5,000 shares of common stock that were granted under the 2013 and 2014 plan, respectively, in April 2016, 5,000 and 15,000 shares of common stock that were granted under the 2013 and 2014 plan, respectively, in September 2017, and warrants to purchase 141,000 shares of common stock issued to the underwriters of the Company's IPO in July 2015, were not included in the computation of diluted earnings per share in the 2017 period because the effect would have been anti-dilutive. (2) Options to purchase 392,680 shares of common stock remaining to be exercised under the 2013 plan, warrants to purchase 2,286 shares of common stock remaining to be exercised, warrants to purchase 141,000 shares issued to the underwriters in July 2015 as noted in Note 1, and options to purchase 15,000 shares of common stock that were granted in August 2015, as discussed in Note 10 under the 2014 plan, were considered in the computation of diluted earnings per share using the treasury stock method in the 2016 calculation. Options to purchase 210,000 shares of common stock that were granted on January 1, 2014 remaining to be exercised under the 2013 plan and 12,200 shares of common stock that were granted under the 2013 and 2014 plan in April 2016 as noted in Note 10, were not included in the computation of diluted earnings per share in the 2016 period because the effect would have been anti-dilutive. (3) Options to purchase 450,000 shares of common stock remaining to be exercised,warrants to purchase 24,504 shares of common stock remaining to be exercised and warrants to purchase 141,000 shares issued to the underwriters granted in July 2015, as noted in Note 1, were considered in the computation of diluted earnings per share using the treasury stock method in the 2015 calculation. Options to purchase 245,000 shares of common stock that were granted in August 2015 and November 2015 under the 2014 plan, as noted in Note 10, were not included in the computation of diluted earnings per share in the 2015 period because the effect would have been anti-dilutive.

Selected Quarterly Financial 37

Selected Quarterly Financial Data (unaudited) (Tables)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information	The following tables set forth a condensed summary of the Company's unaudited selected quarterly results for each of the quarters in fiscal 2017 and 2016. Thirteen Weeks Ended April 2, 2017 Thirteen Weeks Ended July 2, 2017 Thirteen Weeks Ended October 1, 2017 Thirteen Weeks Ended December 31, 2017 2017 Net sales $ 47,857,096 $ 44,518,039 $ 41,231,366 $ 41,681,481 Gross profit $ 11,107,161 $ 10,666,091 $ 8,974,926 $ 9,305,356 Operating income 3,515,457 3,070,774 1,706,114 1,994,325 Net income $ 2,046,837 $ 1,668,410 $ 715,106 $ 2,056,338 Net income per share Basic $ 0.21 $ 0.17 $ 0.07 $ 0.21 Diluted $ 0.21 $ 0.17 $ 0.07 $ 0.21 Thirteen Weeks Ended April 3, 2016 Thirteen Weeks Ended July 3, 2016 Thirteen Weeks Ended October 2, 2016 Thirteen Weeks Ended January 1, 2017 2016 Net sales $ 39,982,504 $ 42,048,220 $ 44,753,565 $ 43,678,664 Gross profit $ 9,599,946 $ 9,091,238 $ 11,250,348 $ 9,602,935 Operating income $ 3,010,291 $ 1,926,252 $ 4,301,314 $ 2,747,103 Net income $ 1,833,651 $ 599,172 $ 2,520,199 $ 1,731,098 Net income per share Basic $ 0.19 $ 0.06 $ 0.26 $ 0.18 Diluted $ 0.19 $ 0.06 $ 0.25 $ 0.17

Nature of Business and Signif38

Nature of Business and Significant Accounting Policies (Details)	Apr. 29, 2016USD ($)	Jul. 07, 2015USD ($)$ / sharesshares	Jul. 31, 2015USD ($)	Dec. 31, 2017USD ($)reporting_unitsegment	Jan. 01, 2017USD ($)	Jan. 03, 2016USD ($)shares
Accounting Policies [Abstract]
Number of operating segments | segment				1
Number of reportable segments | segment				1
Class of Stock [Line Items]
Shares issued (in shares) | shares						2,702,500
Allowance for doubtful accounts receivable				$ 768,500	$ 655,312
Number of reporting units for goodwill testing Purposes | reporting_unit				1
Impairment charge				$ 0	0	$ 0
Unamortized debt issuance expense				232,045	301,620
Unamortized discount				242,059	270,959
Loss on extinguishment of debt			$ 386,552	0	60,202	386,552
Amortization of debt issuance costs				148,948	127,556	269,629
Concentration Risk [Line Items]
Dividend income				0	0	0
Impairment loss				0	0	0
Unrecognized tax benefits				0	0
Income tax penalties and interest				0	$ 0	$ 0
Subordinated debt
Class of Stock [Line Items]
Extinguishment of debt		$ 13,100,000
Stated interest rate		16.00%	16.00%
Senior credit facility | Line of credit | Revolving credit facility
Class of Stock [Line Items]
Unamortized debt issuance expense	$ 160,111			99,909
Loss on extinguishment of debt	$ 60,202
Senior credit facility | Term loan | Revolving credit facility
Class of Stock [Line Items]
Unamortized discount				$ 92,508
Labor force concentration risk | Collective Bargaining Arrangements Expiring August 2019 | Workforce Subject to Collective Bargaining Arrangements
Concentration Risk [Line Items]
Concentration risk (percentage)				32.00%
Labor force concentration risk | Collective Bargaining Arrangements Expiring February 2020 | Workforce Subject to Collective Bargaining Arrangements
Concentration Risk [Line Items]
Concentration risk (percentage)				6.00%
Geographic concentration risk | Sales revenue, net | Mexico
Concentration Risk [Line Items]
Concentration risk (percentage)				15.00%	12.00%	13.00%
Geographic concentration risk | Sales revenue, net | Canada
Concentration Risk [Line Items]
Concentration risk (percentage)				10.00%	8.00%	4.00%
Geographic concentration risk | Sales revenue, net | Other foreign countries
Concentration Risk [Line Items]
Concentration risk (percentage)				1.00%	1.00%	1.00%
Geographic concentration risk | Production risk | Mexico
Concentration Risk [Line Items]
Concentration risk (percentage)				15.00%	12.00%	12.00%
Geographic concentration risk | Production risk | Canada
Concentration Risk [Line Items]
Concentration risk (percentage)				9.00%	6.00%	0.00%
Warrants for Underwriters
Class of Stock [Line Items]
Percentage of offering price per share		125.00%
Grant date fair value		$ 336,300
Warrants for Underwriters | Minimum
Class of Stock [Line Items]
Warrant term		1 year
Warrants for Underwriters | Maximum
Class of Stock [Line Items]
Warrant term		5 years
IPO
Class of Stock [Line Items]
Proceeds from issuance of common stock		$ 22,200,000
General Motors Company | Customer concentration risk | Sales revenue, net
Concentration Risk [Line Items]
Concentration risk (percentage)				14.00%	15.00%	15.00%
General Motors Company | Customer concentration risk | Accounts receivable
Concentration Risk [Line Items]
Concentration risk (percentage)				11.00%	12.00%
Fiat Chrysler Automobile | Customer concentration risk | Sales revenue, net
Concentration Risk [Line Items]
Concentration risk (percentage)				13.00%	11.00%	15.00%
Ford Motor Company | Customer concentration risk | Sales revenue, net
Concentration Risk [Line Items]
Concentration risk (percentage)				11.00%	12.00%	15.00%
Common Stock | IPO
Class of Stock [Line Items]
Shares issued (in shares) | shares		2,702,500
Share price (in dollars per share) | $ / shares		$ 9.50
Common Stock | Over-Allotment Option
Class of Stock [Line Items]
Shares issued (in shares) | shares		352,500
Accounts payable
Concentration Risk [Line Items]
Checks issued in excess of available cash				$ 2,919,460	$ 2,938,750

Business Combinations - Narrati

Business Combinations - Narrative (Details)

Apr. 29, 2016USD ($)shares

Aug. 31, 2015USD ($)

Aug. 31, 2016USD ($)

Nov. 30, 2015USD ($)

May 01, 2018USD ($)

Dec. 31, 2017USD ($)

Apr. 30, 2017CAD

Apr. 30, 2017USD ($)

Jan. 01, 2017USD ($)

Jan. 03, 2016USD ($)

May 01, 2021CAD

Apr. 30, 2019CAD

Intasco

Business Acquisition [Line Items]

Payments to acquire business

$ 21,049,045

Percentage of voting interests acquired

100.00%

Total consideration

$ 890,726

Equity interests acquired (in shares) | shares

70,797

Working capital adjustment

$ 126,047

Amount owed at closing

$ 212,823

Acquisition transaction costs

852,580

Tax deductible portion of goodwill

$ 7,267,507

Pro forma revenue

$ 12,501,386

Pro forma income

131,433

Intasco | United States

Business Acquisition [Line Items]

Operating lease, rent expense, term of lease

2 years

Operating lease, rent expense

$ 4,000

Intasco | Canada

Business Acquisition [Line Items]

Operating lease, rent expense, term of lease

5 years

Operating lease, rent expense | CAD

CAD 16,750

Intasco | Scenario, Forecast | United States

Business Acquisition [Line Items]

Operating lease, rent expense

$ 4,080

Intasco | Scenario, Forecast | Canada

Business Acquisition [Line Items]

Operating lease, rent expense | CAD

CAD 17,427

CAD 17,085

Great Lakes Foam Technologies, Inc.

Business Acquisition [Line Items]

Payments to acquire business

$ 11,947,392

$ 0

$ 0

$ 11,819,991

Total consideration

12,000,000

Working capital adjustment

180,009

$ 127,401

Acquisition transaction costs

$ 421,637

Operating lease, rent expense, term of lease

5 years

Operating lease, rent expense

$ 7,500

Tax deductible portion of goodwill

$ 4,347,457

Pro forma revenue

3,627,337

Pro forma income

235,359

Great Lakes Foam Technologies, Inc. | Consolidation, Eliminations

Business Acquisition [Line Items]

Pro forma revenue

$ 145,655

Business Combinations - Schedul

Business Combinations - Schedule of Business Acquisitions by Acquisition (Details) - USD ($)	Dec. 31, 2017	Jan. 01, 2017	Apr. 29, 2016	Aug. 31, 2015
Business Acquisition [Line Items]
Goodwill	$ 28,871,179	$ 28,871,179
Intasco
Business Acquisition [Line Items]
Cash			$ 18,250
Accounts receivable			2,146,082
Inventory			2,485,781
Other current assets			74,194
Property, plant, and equipment			861,491
Identifiable intangible assets			7,316,694
Accounts payable and accrued liabilities			(716,080)
Deferred tax liabilities			(97,622)
Total identifiable net assets			12,088,790
Goodwill			9,657,221
Total			$ 21,746,011
Great Lakes Foam Technologies, Inc.
Business Acquisition [Line Items]
Accounts receivable				$ 1,001,005
Inventory				1,115,809
Deferred tax assets				1,468
Other current assets				2,500
Property, plant, and equipment				810,001
Identifiable intangible assets				5,915,000
Accounts payable and accrued liabilities				(928,933)
Total identifiable net assets				7,916,850
Goodwill				4,030,542
Total				$ 11,947,392

Business Combinations - Sched41

Business Combinations - Schedule of Pro Forma Information (Unaudited) (Details) - Intasco and Great Lakes - USD ($)	12 Months Ended
	Jan. 01, 2017	Jan. 03, 2016
Business Acquisition [Line Items]
Net sales	$ 176,309,480	$ 167,208,908
Net income	$ 6,460,512	$ 6,505,410
Net income per common share – basic (in dollars per share)	$ 0.67	$ 0.80
Net income per common share – diluted (in dollars per share)	$ 0.65	$ 0.77

Inventory - Schedule of Invento

Inventory - Schedule of Inventory (Details) - USD ($)	Dec. 31, 2017	Jan. 01, 2017
Inventory Disclosure [Abstract]
Raw materials	$ 9,005,335	$ 9,513,980
Work in progress	578,056	623,504
Finished goods	6,746,693	6,594,124
Total inventory	$ 16,330,084	$ 16,731,608

Inventory - Narrative (Details)

Inventory - Narrative (Details) - USD ($)	12 Months Ended
	Jan. 01, 2017	Jan. 03, 2016	Dec. 31, 2017
Inventory [Line Items]
Allowance for obsolete inventory reserve	$ 471,537		$ 434,712
Inventory – net	16,731,608		16,330,084
Fair value adjustment to inventory | Intasco
Inventory [Line Items]
Provisional information, adjustment, inventory	318,518
Fair value adjustment to inventory | Intasco | Cost of Sales
Inventory [Line Items]
Provisional information, adjustment, inventory	318,518
Fair value adjustment to inventory | Intasco | Inventory
Inventory [Line Items]
Provisional information, adjustment, inventory	0
Fair value adjustment to inventory | Great Lakes Foam Technologies, Inc.
Inventory [Line Items]
Provisional information, adjustment, inventory		$ 146,191
Fair value adjustment to inventory | Great Lakes Foam Technologies, Inc. | Cost of Sales
Inventory [Line Items]
Provisional information, adjustment, inventory		146,191
Fair value adjustment to inventory | Great Lakes Foam Technologies, Inc. | Inventory
Inventory [Line Items]
Provisional information, adjustment, inventory		$ 0
Mexico
Inventory [Line Items]
Inventory – net	2,911,926		3,173,944
Canada
Inventory [Line Items]
Inventory – net	$ 1,180,400		$ 1,072,430

Property, Plant, and Equipmen44

Property, Plant, and Equipment - Schedule of Property, Plant, and Equipment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 29,840,682	$ 25,953,830
Accumulated depreciation	6,865,281	4,755,908
Net property, plant, and equipment	22,975,401	21,197,922
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment	1,663,153	1,663,153
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 7,606,125	7,541,976
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Depreciable Life – Years	23 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Depreciable Life – Years	40 years
Shop equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 16,654,811	13,003,025
Shop equipment | Minimum
Property, Plant and Equipment [Line Items]
Depreciable Life – Years	7 years
Shop equipment | Maximum
Property, Plant and Equipment [Line Items]
Depreciable Life – Years	10 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 997,277	913,097
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Depreciable Life – Years	3 years
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Depreciable Life – Years	10 years
Office equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 1,442,082	1,188,746
Office equipment | Minimum
Property, Plant and Equipment [Line Items]
Depreciable Life – Years	3 years
Office equipment | Maximum
Property, Plant and Equipment [Line Items]
Depreciable Life – Years	7 years
Mobile equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 223,474	218,743
Mobile equipment | Minimum
Property, Plant and Equipment [Line Items]
Depreciable Life – Years	3 years
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 1,253,760	$ 1,425,090

Property, Plant, and Equipmen45

Property, Plant, and Equipment - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 2,197,415	$ 1,804,110	$ 1,379,176
Property, Plant, and Equipment – Net	22,975,401	21,197,922
Mexico
Property, Plant and Equipment [Line Items]
Property, Plant, and Equipment – Net	2,659,920	1,586,472
Canada
Property, Plant and Equipment [Line Items]
Property, Plant, and Equipment – Net	$ 684,431	$ 755,040

Intangible Assets - Schedule of

Intangible Assets - Schedule of intangible assets by major class (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 33,892,686	$ 33,892,686
Accumulated Amortization	14,256,904	10,134,344
Amortization expense	$ 4,122,560	3,697,564	$ 2,524,253
Weighted Average
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life – Years	8 years 11 months 16 days
Customer contracts
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 26,523,065	26,523,065
Accumulated Amortization	$ 11,588,946	$ 8,240,853
Customer contracts | Weighted Average
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life – Years	8 years 1 month 27 days	8 years 1 month 27 days
Trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 4,673,044	$ 4,673,044
Accumulated Amortization	$ 1,160,569	$ 868,866
Trade names | Weighted Average
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life – Years	16 years 5 months 5 days	16 years 5 months 5 days
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,161,790	$ 1,161,790
Accumulated Amortization	$ 995,233	$ 818,585
Non-compete agreements | Weighted Average
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life – Years	2 years 6 months 10 days	2 years 6 months 10 days
Unpatented technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,534,787	$ 1,534,787
Accumulated Amortization	$ 512,156	$ 206,040
Unpatented technology | Weighted Average
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life – Years	5 years	5 years

Intangible Assets - Finite-live

Intangible Assets - Finite-lived intangible assets, future amortization expense schedule (Details) - USD ($)	Dec. 31, 2017	Jan. 01, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
2,018	$ 4,070,321
2,019	3,945,264
2,020	3,913,627
2,021	2,455,712
2,022	1,305,314
Thereafter	3,945,544
Total	$ 19,635,782	$ 23,758,342

Long-term Debt - Narrative (Det

Long-term Debt - Narrative (Details) - USD ($)	Apr. 29, 2016	Dec. 31, 2017	Aug. 18, 2017
Senior credit facility, first amendment | Term loan | Revolving credit facility
Debt Instrument [Line Items]
Debt instrument, face amount	$ 20,000,000
Senior credit facility, third amendment | Line of credit | Revolving credit facility
Debt Instrument [Line Items]
Maximum borrowing capacity	25,000,000
Senior credit facility | Revolving credit facility | Line of credit
Debt Instrument [Line Items]
Repayments of long-term debt	17,300,000
Senior credit facility | Term loan | Revolving credit facility
Debt Instrument [Line Items]
Repayments of long-term debt	15,400,000
Senior credit facility, second amendment | Revolving credit facility | Line of credit | 30 Day London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate		2.75%
Senior credit facility, second amendment | Revolving credit facility | Line of credit | 30 Day London Interbank Offered Rate (LIBOR) | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate		3.25%
Senior credit facility, second amendment | Line of credit | Revolving credit facility
Debt Instrument [Line Items]
Letters of credit outstanding, amount		$ 100,000
New credit agreement | Line of credit | Secured debt
Debt Instrument [Line Items]
Maximum borrowing capacity	62,000,000
Maximum increase to principal amount	10,000,000
New credit agreement | Line of credit | Secured debt | Base Rate | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate		1.75%
New credit agreement | Line of credit | Secured debt | Base Rate | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate		2.50%
New credit agreement | Line of credit | Secured debt | London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate		2.75%
New credit agreement | Line of credit | Secured debt | London Interbank Offered Rate (LIBOR) | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate		3.50%
New credit agreement | Letter of credit | Revolving credit facility
Debt Instrument [Line Items]
Maximum borrowing capacity	2,000,000
New revolver | Revolving credit facility
Debt Instrument [Line Items]
Long-term Line of Credit		$ 22,708,570
New revolver | Line of credit | Revolving credit facility
Debt Instrument [Line Items]
Maximum borrowing capacity	30,000,000	$ 7,191,430
Proceeds from lines of credit	22,900,000
Long-term Line of Credit			$ 4,000,000
Effective interest rate		5.069%
US term loan | Line of credit | Secured debt
Debt Instrument [Line Items]
Debt instrument, face amount	17,000,000
Effective interest rate		5.069%
CA term loan | Line of credit | Secured debt
Debt Instrument [Line Items]
Debt instrument, face amount	$ 15,000,000
Effective interest rate		5.069%
US Term Loan II | Line of credit | Secured debt
Debt Instrument [Line Items]
Debt instrument, face amount			$ 4,000,000
Effective interest rate		5.069%

Long-term Debt - Schedule of lo

Long-term Debt - Schedule of long-term debt (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017
Debt Instrument [Line Items]
Total debt excluding revolver	$ 31,088,844	$ 30,434,487
Less current maturities	3,799,998	2,405,446
Long-term debt – Less current maturities	27,288,846	28,029,041
Unamortized discount	242,059	270,959
Notes payable, other payables
Debt Instrument [Line Items]
Total debt excluding revolver	$ 500,000	$ 500,000
Stated interest rate	6.00%	6.00%
Other debt
Debt Instrument [Line Items]
Total debt excluding revolver	$ 0	$ 5,446
Line of credit | US term loan | Secured debt
Debt Instrument [Line Items]
Total debt excluding revolver	$ 14,060,065	15,862,309
Effective interest rate	5.069%
Unamortized discount	$ 139,588
Line of credit | US term loan | Secured debt | Installments through March 31, 2018
Debt Instrument [Line Items]
Periodic principal amount	318,750
Line of credit | US term loan | Secured debt | Installments through March 31, 2019
Debt Instrument [Line Items]
Periodic principal amount	425,000
Line of credit | US term loan | Secured debt | Installments through March 31, 2021
Debt Instrument [Line Items]
Periodic principal amount	531,250
Line of credit | US Term Loan II | Secured debt
Debt Instrument [Line Items]
Total debt excluding revolver	$ 3,566,398	0
Effective interest rate	5.069%
Unamortized discount	$ 33,602
Line of credit | US Term Loan II | Secured debt | Installments through March 31, 2018
Debt Instrument [Line Items]
Periodic principal amount	200,000
Line of credit | US Term Loan II | Secured debt | Installments through March 31, 2019
Debt Instrument [Line Items]
Periodic principal amount	200,000
Line of credit | US Term Loan II | Secured debt | Installments through March 31, 2021
Debt Instrument [Line Items]
Periodic principal amount	200,000
Line of credit | CA term loan | Secured debt
Debt Instrument [Line Items]
Total debt excluding revolver	$ 12,962,381	$ 14,066,732
Effective interest rate	5.069%
Unamortized discount	$ 68,869
Line of credit | CA term loan | Secured debt | Installments through March 31, 2018
Debt Instrument [Line Items]
Periodic principal amount	281,250
Line of credit | CA term loan | Secured debt | Installments through March 31, 2019
Debt Instrument [Line Items]
Periodic principal amount	375,000
Line of credit | CA term loan | Secured debt | Installments through March 31, 2021
Debt Instrument [Line Items]
Periodic principal amount	$ 468,750

Long-term Debt - Schedule of re

Long-term Debt - Schedule of repayment of maturities (Details) - USD ($)	Dec. 31, 2017	Jan. 01, 2017
Debt Disclosure [Abstract]
2,018	$ 3,800,000
2,019	5,100,000
2,020	4,800,000
2,021	40,339,473
2,022	0
Thereafter	0
Total	54,039,473
Discounts	(242,059)	$ (270,959)
Debt issuance costs	(232,045)
Total debt – Net	$ 53,565,369

Derivative Financial Instrume51

Derivative Financial Instruments (Details)	12 Months Ended
	Dec. 31, 2017USD ($)swap	Jan. 01, 2017USD ($)	Jun. 28, 2019USD ($)	Jun. 29, 2018USD ($)	Oct. 02, 2017USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2016USD ($)	Jun. 29, 2016USD ($)
Interest rate swap | Not designated as hedging instrument
Derivatives, Fair Value [Line Items]
Fixed interest rate					1.093%		1.055%
Notional amount					$ 1,900,000		$ 16,681,250
Notional amount quarterly decrease					$ 100,000	$ 318,750
Number of Interest Rate Derivatives Held | swap	2
Derivative fair value assets (liabilities)	$ 159,320
Interest rate swap | Not designated as hedging instrument | Interest expense
Derivatives, Fair Value [Line Items]
Monthly settlements	1,159	$ 44,624
Interest rate swap | Not designated as hedging instrument | Scenario, Forecast
Derivatives, Fair Value [Line Items]
Notional amount quarterly decrease			$ 531,250	$ 425,000
Foreign exchange forward | Designated as hedging instrument
Derivatives, Fair Value [Line Items]
Notional amount								$ 3,300,000
Derivative fair value assets (liabilities)	$ 0	$ (168,880)

Restructuring - Narrative (Deta

Restructuring - Narrative (Details)	Feb. 13, 2018USD ($)employee	Feb. 01, 2018USD ($)employee	Oct. 31, 2016USD ($)	Oct. 27, 2015employee	Dec. 31, 2017USD ($)	Jan. 01, 2017USD ($)	Jan. 03, 2016USD ($)
Restructuring Cost and Reserve [Line Items]
Net book value of facility expected to be sold after closure					$ 22,975,401	$ 21,197,922
Proceeds from sale of property and equipment					51,847	2,187,366	$ 73,847
Subsequent Event | Fort Smith, Arkansas | Manufacturing Facility
Restructuring Cost and Reserve [Line Items]
Net book value of facility expected to be sold after closure	$ 700,000
Fort Smith Restructuring | Subsequent Event
Restructuring Cost and Reserve [Line Items]
Number of positions expected to be eliminated | employee	20
Fort Smith Restructuring | Subsequent Event | One-time Termination Benefits
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost to be incurred	$ 200,000
Fort Smith Restructuring | Subsequent Event | Other Costs | Minimum
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost to be incurred	400,000
Fort Smith Restructuring | Subsequent Event | Other Costs | Maximum
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost to be incurred	$ 500,000
Port Huron Restructuring | Subsequent Event
Restructuring Cost and Reserve [Line Items]
Number of positions expected to be eliminated | employee		7
Port Huron Restructuring | Subsequent Event | One-time Termination Benefits
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost to be incurred		$ 100,000
Port Huron Restructuring | Subsequent Event | Other Costs | Minimum
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost to be incurred		100,000
Port Huron Restructuring | Subsequent Event | Other Costs | Maximum
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost to be incurred		$ 200,000
Murfreesbboro Restructuring
Restructuring Cost and Reserve [Line Items]
Workforce reduction due to plant closure | employee				30
Amount of restructuring cost incurred					$ 0
Murfreesbboro Restructuring | Buildings
Restructuring Cost and Reserve [Line Items]
Net book value of asset held for sale			$ 2,033,327
Proceeds from sale of property and equipment			2,175,185
Gain on sale of property, plant, and equipment			$ 147,413
Murfreesbboro Restructuring | One-time Termination Benefits
Restructuring Cost and Reserve [Line Items]
Amount of restructuring cost incurred						(51,951)
Murfreesbboro Restructuring | Other Costs
Restructuring Cost and Reserve [Line Items]
Amount of restructuring cost incurred						$ (87,005)

Restructuring - Liability (Deta

Restructuring - Liability (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Restructuring Reserve [Roll Forward]
Accrual balance at January 3, 2016	$ 0	$ 254,191
Provision for estimated expenses incurred during the year	0	(35,054)	$ (374,230)
Payments made during the year		(289,245)
Accrual balance at January 1, 2017		0	254,191
Employee Termination Benefits Liability
Restructuring Reserve [Roll Forward]
Accrual balance at January 3, 2016	0	190,864
Provision for estimated expenses incurred during the year		51,951
Payments made during the year		(138,913)
Accrual balance at January 1, 2017		0	190,864
Other Exit Costs Liability
Restructuring Reserve [Roll Forward]
Accrual balance at January 3, 2016	$ 0	63,327
Provision for estimated expenses incurred during the year		(87,005)
Payments made during the year		(150,332)
Accrual balance at January 1, 2017		$ 0	$ 63,327

Redeemable Common Stock (Detail

Redeemable Common Stock (Details) - USD ($)	Jul. 06, 2015	Mar. 18, 2013	Jan. 14, 2013	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016	Jul. 31, 2015	Jul. 07, 2015	Dec. 18, 2013
Temporary Equity [Line Items]
Threshold for redemption (percent)		75.00%
Accretion to redemption value				$ 0	$ 0	$ 1,364,031
Private Placement
Temporary Equity [Line Items]
Redemption price per share of temporary equity (in dollars per share)			$ 0.167
Minimum public offering (in dollars per share)			4
Price per share of temporary equity shares issued (in dollars per share)			$ 0.167
Redemption value of shares			$ 166,667
Private Placement | Common Stock
Temporary Equity [Line Items]
Redeemable common stock issued (in shares)			999,999				999,999
IPO | Common Stock
Temporary Equity [Line Items]
Share price (in dollars per share)								$ 9.50
Investor
Temporary Equity [Line Items]
Redeemable common stock issued (in shares)									1,415,400
Redemption value of shares	$ 13,446,300
Accretion to redemption value	$ 1,364,031
Investor | Minimum
Temporary Equity [Line Items]
Redemption period of temporary equity		6 years
Investor | Maximum
Temporary Equity [Line Items]
Redemption period of temporary equity		7 years

Stock Incentive Plans - Narrati

Stock Incentive Plans - Narrative (Details) - USD ($)

Sep. 15, 2017

Apr. 29, 2016

Nov. 20, 2015

Aug. 17, 2015

Jan. 01, 2014

Jul. 17, 2013

Dec. 31, 2017

Jan. 01, 2017

Jan. 03, 2016

Jun. 30, 2016

Jan. 04, 2015

Dec. 29, 2013

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Income tax benefit from share based compensation expense

$ 22,360

$ 54,549

$ 64,882

Selling, General and Administrative Expenses

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Allocated share-based compensation expense

150,368

$ 166,476

$ 205,845

Employee Stock Option

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Unrecognized compensation cost

$ 235,289

Compensation cost, weighted average period (in years)

1 year 8 months 27 days

The 2013 Stock Incentive Plan

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Common stock shares reserved for future issuance (in shares)

495,000

Shares granted (in shares)

5,000

7,200

120,000

375,000

Granted (in dollars per share)

$ 7.65

$ 12.58

$ 3.33

$ 3.33

Weighted average grant date fair value (in dollars per share)

$ 1.41

$ 2.80

$ 0.35

$ 0.23

The 2013 Stock Incentive Plan | Employee Stock Option

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Number of shares available for grant (in shares)

495,000

Expiration period

10 years

The 2013 Stock Incentive Plan | Employee Stock Option | Award vesting on grant date

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Award vesting rights, percentage

20.00%

The 2013 Stock Incentive Plan | Employee Stock Option | Award vesting, first anniversary

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Award vesting rights, percentage

20.00%

The 2013 Stock Incentive Plan | Employee Stock Option | Award vesting, second anniversary

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Award vesting rights, percentage

20.00%

The 2013 Stock Incentive Plan | Employee Stock Option | Award vesting, third anniversary

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Award vesting rights, percentage

20.00%

The 2013 Stock Incentive Plan | Employee Stock Option | Award vesting, fourth anniversary

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Award vesting rights, percentage

20.00%

2014 Omnibus Performance Award Plan

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Shares granted (in shares)

15,000

5,000

15,000

230,000

Granted (in dollars per share)

$ 7.65

$ 12.58

$ 11.50

$ 12.50

Weighted average grant date fair value (in dollars per share)

$ 1.41

$ 2.80

$ 2.23

$ 2.72

Number of shares authorized (in shares)

450,000

250,000

2014 Omnibus Performance Award Plan | Director

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Shares granted (in shares)

45,000

2014 Omnibus Performance Award Plan | Employee

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Shares granted (in shares)

185,000

2014 Omnibus Performance Award Plan | Employee Stock Option | Award vesting on grant date

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Award vesting rights, percentage

20.00%

2014 Omnibus Performance Award Plan | Employee Stock Option | Award vesting, first anniversary

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Award vesting rights, percentage

20.00%

2014 Omnibus Performance Award Plan | Employee Stock Option | Award vesting, second anniversary

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Award vesting rights, percentage

20.00%

2014 Omnibus Performance Award Plan | Employee Stock Option | Award vesting, third anniversary

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Award vesting rights, percentage

20.00%

2014 Omnibus Performance Award Plan | Employee Stock Option | Award vesting, fourth anniversary

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Award vesting rights, percentage

20.00%

Stock Incentive Plans - Valuati

Stock Incentive Plans - Valuation Assumptions (Details) - Employee Stock Option	Sep. 15, 2017	Apr. 29, 2016	Nov. 20, 2015	Aug. 17, 2015	Jan. 01, 2014	Jul. 17, 2013
The 2013 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	40.00%	40.00%			34.00%	34.00%
Dividend yield	7.00%	5.00%			0.00%	0.00%
Expected term (in years)	5 years	5 years			4 years	4 years
Risk-free rate	1.81%	1.28%			1.27%	0.96%
2014 Omnibus Performance Award Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	40.00%	40.00%	35.00%	38.00%
Dividend yield	7.00%	5.00%	5.00%	4.80%
Expected term (in years)	5 years	5 years	5 years	5 years
Risk-free rate	1.81%	1.28%	1.70%	1.58%

Stock Incentive Plans - Schedul

Stock Incentive Plans - Schedule of stock options and stock awards (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017
Aggregate Intrinsic Value
Share price (in dollars per share)	$ 7.42
The 2013 Plan and The 2014 Plan
Number of Shares
Outstanding at beginning of period (in shares)	629,880
Granted (in shares)	20,000
Exercised (in shares)	47,400
Forfeited or expired (in shares)	0
Outstanding at end of period (in shares)	602,480	629,880
Vested and exercisable	467,560
Weighted Average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 6.76
Granted (in dollars per share)	7.65
Exercised (in dollars per share)	3.33
Forfeited or expired (in dollars per share)	0
Outstanding at end of period (in dollars per share)	7.06	$ 6.76
Vested and exercisable (in dollars per share)	$ 6.11
Weighted Average Remaining Contractual Term (in years)
Outstanding weighted average remaining contractual term	6 years 6 months 28 days	7 years 4 months 23 days
Granted	10 years
Exercised	0 years
Forfeited or expired	0 years
Vested and exercisable	6 years 3 months 2 days
Aggregate Intrinsic Value
Outstanding at end of period, aggregate intrinsic value	$ 216,893
Vested and exercisable, aggregate intrinsic value	$ 612,504

Income Taxes - Schedule of inco

Income Taxes - Schedule of income before income taxes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Income Tax Disclosure [Abstract]
U.S. income	$ 3,877,650	$ 8,820,049	$ 6,310,039
Non-U.S. income	3,741,921	1,121,690	1,033,223
Income before income taxes	$ 7,619,571	$ 9,941,739	$ 7,343,262

Income Taxes - Schedule of comp

Income Taxes - Schedule of components of income tax expense (benefit) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Current tax expense:
Federal	$ 1,206,992	$ 3,340,070	$ 2,256,970
State	292,702	355,748	244,253
Foreign	1,185,688	727,450	309,528
Total	2,685,382	4,423,268	2,810,751
Deferred tax expense:
Federal	(1,165,546)	(766,716)	(468,169)
State	(235,622)	(68,069)	(41,310)
Foreign	(151,334)	(330,864)	13,052
Total	(1,552,502)	(1,165,649)	(496,427)
Total income tax expense	$ 1,132,880	$ 3,257,619	$ 2,314,324

Income Taxes - Schedule of defe

Income Taxes - Schedule of deferred taxes (Details) - USD ($)	Dec. 31, 2017	Jan. 01, 2017
Deferred tax assets (liabilities):
Allowance for doubtful accounts	$ 194,684	$ 224,966
Inventories	118,813	198,130
Accrued payroll and benefits	491,214	776,309
Other	44,820	165,820
Deferred tax asset	849,531	1,365,225
Property, plant, and equipment	(2,534,440)	(3,417,377)
Goodwill and intangible assets	(405,293)	(1,590,552)
Deferred tax liability	(2,939,733)	(5,007,929)
Total deferred tax liability	$ (2,090,202)	$ (3,642,704)

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Operating Loss Carryforwards [Line Items]
Valuation allowance	$ 0	$ 0
Undistributed earnings		2,183,895
Unrecognized tax benefits	0	0
Income tax penalties and interest	$ 0	$ 0	$ 0

Income Taxes - Schedule of in62

Income Taxes - Schedule of income taxes based on federal tax rate (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Income Tax Disclosure [Abstract]
Tax rate for Income tax Expense	34.00%	34.00%
Income tax expense, computed at 34% of pretax income	$ 2,590,654	$ 3,380,191	$ 2,496,709
State income taxes, net of federal benefit	66,607	193,070	133,784
Foreign tax rate differential	(206,432)	(51,388)	(28,753)
Impact of U.S. tax reform	(559,286)	0	0
Research and Development credits	(681,957)	0	0
Other	(76,706)	(264,254)	(287,416)
Total income tax expense	1,132,880	$ 3,257,619	$ 2,314,324
Deferred tax liability due to lowering of the U.S. corporate tax rate	(1,357,472)
One time transition tax due to lowering of corporate tax rate	$ 798,186

Operating Leases - Narrative (D

Operating Leases - Narrative (Details)	12 Months Ended
	Dec. 31, 2017USD ($)lease	Jan. 01, 2017USD ($)	Jan. 03, 2016USD ($)
Leases, Operating [Abstract]
Number of leases provided for escalating rents | lease	5
Operating lease, total rent expense | $	$ 2,198,051	$ 2,019,073	$ 1,442,155

Operating Leases - Schedule of

Operating Leases - Schedule of future minimum lease payments (Details)	Dec. 31, 2017USD ($)
Leases, Operating [Abstract]
2,018	$ 2,252,038
2,019	1,855,354
2,020	1,323,259
2,021	510,045
2,022	376,878
Thereafter	0
Total	$ 6,317,574

Retirement Plans (Details)

Retirement Plans (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution, percent of employees gross pay	3.00%
Employer contribution amount	$ 451,572	$ 409,247	$ 368,650
United States
Defined Benefit Plan Disclosure [Line Items]
Employer contribution amount	3,247	3,010
Canada
Defined Benefit Plan Disclosure [Line Items]
Employer contribution amount	$ 40,643	$ 28,195
Defined contribution plan, initial contribution
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution, percent	100.00%
Employer matching contribution, percent of employees gross pay	3.00%
Defined contribution plan, additional contribution
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution, percent	50.00%
Employer matching contribution, percent of employees gross pay	2.00%

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($)	Mar. 18, 2013	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016	Jul. 07, 2015
Investor | Accrued Interest | Subordinated debt
Related Party Transaction [Line Items]
Interest expense, related party		$ 0	$ 0	$ 1,514,901
Affiliated Entity | Warrants for Underwriters
Related Party Transaction [Line Items]
Number of warrants purchased (in shares)				70,500	141,000
Affiliated Entity | Management Agreement
Related Party Transaction [Line Items]
Management agreement, term	5 years
Annual management fees	$ 300,000
Expenses from management contract		$ 225,000	225,000	$ 275,000
Affiliated Entity | Expenses from Intasco Acquisition
Related Party Transaction [Line Items]
Expenses from management contract			$ 259,000
Affiliated Entity | Management Fees | Great Lakes Foam Technologies, Inc.
Related Party Transaction [Line Items]
Expenses from management contract				220,000
Affiliated Entity | Member Underwriting Discounts and Commissions
Related Party Transaction [Line Items]
Expenses from management contract				975,603
Affiliated Entity | Legal Fees, Road Show Expenses, and Non Accountable Expenses
Related Party Transaction [Line Items]
Expenses from management contract				$ 141,684

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Oct. 01, 2017	Jul. 02, 2017	Apr. 02, 2017	Jan. 01, 2017	Oct. 02, 2016	Jul. 03, 2016	Apr. 03, 2016	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Basic earnings per share calculation:
Net income	$ 2,056,338	$ 715,106	$ 1,668,410	$ 2,046,837	$ 1,731,098	$ 2,520,199	$ 599,172	$ 1,833,651	$ 6,486,691	$ 6,684,120	$ 5,028,938
Net income attributable to common stockholders									$ 6,486,691	$ 6,684,120	$ 5,028,938
Weighted average shares outstanding (in shares)									9,750,948	9,678,316	8,174,418
Net income per share-basic (in dollars per share)	$ 0.21	$ 0.07	$ 0.17	$ 0.21	$ 0.18	$ 0.26	$ 0.06	$ 0.19	$ 0.67	$ 0.69	$ 0.62
Diluted earnings per share calculation:
Net income	$ 2,056,338	$ 715,106	$ 1,668,410	$ 2,046,837	$ 1,731,098	$ 2,520,199	$ 599,172	$ 1,833,651	$ 6,486,691	$ 6,684,120	$ 5,028,938
Weighted average shares outstanding (in shares)									9,750,948	9,678,316	8,174,418
Effect of dilutive securities:
Stock options (in shares)									147,316	204,948	203,665
Warrants (in shares)									1,154	13,019	48,855
Diluted weighted average shares outstanding (in shares)									9,899,418	9,896,283	8,426,938
Net income per share-diluted (in dollars per share)	$ 0.21	$ 0.07	$ 0.17	$ 0.21	$ 0.17	$ 0.25	$ 0.06	$ 0.19	$ 0.66	$ 0.68	$ 0.60
The 2013 Plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Amount of antidilutive securities excluded from computation of earnings per share (in shares)										210,000
The 2013 Plan and The 2014 Plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Amount of antidilutive securities excluded from computation of earnings per share (in shares)										12,200
Employee Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of securities considered in the computation of earnings per share (in shares)									345,280	15,000	450,000
Amount of antidilutive securities excluded from computation of earnings per share (in shares)											245,000
Employee Stock Option | The 2013 Plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of securities considered in the computation of earnings per share (in shares)										392,680
Warrant
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of securities considered in the computation of earnings per share (in shares)									1,185		24,504
Warrant | The 2013 Plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of securities considered in the computation of earnings per share (in shares)										2,286
Warrants for Underwriters
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of securities considered in the computation of earnings per share (in shares)									225,000	141,000	141,000
Amount of antidilutive securities excluded from computation of earnings per share (in shares)									141,000
April 2016 | The 2013 Plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Amount of antidilutive securities excluded from computation of earnings per share (in shares)									7,200
April 2016 | 2014 Omnibus Performance Award Plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Amount of antidilutive securities excluded from computation of earnings per share (in shares)									5,000
September 2017 | The 2013 Plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Amount of antidilutive securities excluded from computation of earnings per share (in shares)									5,000
September 2017 | 2014 Omnibus Performance Award Plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Amount of antidilutive securities excluded from computation of earnings per share (in shares)									15,000

Selected Quarterly Financial 68

Selected Quarterly Financial Data (unaudited) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Oct. 01, 2017	Jul. 02, 2017	Apr. 02, 2017	Jan. 01, 2017	Oct. 02, 2016	Jul. 03, 2016	Apr. 03, 2016	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Quarterly Financial Information Disclosure [Abstract]
Net Sales	$ 41,681,481	$ 41,231,366	$ 44,518,039	$ 47,857,096	$ 43,678,664	$ 44,753,565	$ 42,048,220	$ 39,982,504	$ 175,287,982	$ 170,462,953	$ 143,309,634
Gross profit	9,305,356	8,974,926	10,666,091	11,107,161	9,602,935	11,250,348	9,091,238	9,599,946	40,053,534	39,544,467	33,821,533
Operating income	1,994,325	1,706,114	3,070,774	3,515,457	2,747,103	4,301,314	1,926,252	3,010,291	10,286,670	11,984,960	10,075,102
Net income	$ 2,056,338	$ 715,106	$ 1,668,410	$ 2,046,837	$ 1,731,098	$ 2,520,199	$ 599,172	$ 1,833,651	$ 6,486,691	$ 6,684,120	$ 5,028,938
Net income per share
Basic (in dollars per share)	$ 0.21	$ 0.07	$ 0.17	$ 0.21	$ 0.18	$ 0.26	$ 0.06	$ 0.19	$ 0.67	$ 0.69	$ 0.62
Diluted (in dollars per share)	$ 0.21	$ 0.07	$ 0.17	$ 0.21	$ 0.17	$ 0.25	$ 0.06	$ 0.19	$ 0.66	$ 0.68	$ 0.60

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions	Feb. 16, 2018	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016	Mar. 07, 2018
Subsequent Event [Line Items]
Dividends declared (in dollars per share)		$ 0.60	$ 0.6	$ 0.30
Subsequent Event
Subsequent Event [Line Items]
Dividends declared (in dollars per share)	$ 0.15
Dividends paid					$ 1.5