Long-Term Debt - Additional Information (Details) - USD ($)					4 Months Ended	9 Months Ended
	Sep. 26, 2018	Feb. 01, 2018	Jun. 06, 2017	Mar. 25, 2016	Jan. 31, 2015	Nov. 03, 2018	Oct. 28, 2017	Jul. 16, 2018	Apr. 07, 2017
Debt Instrument [Line Items]
Proceeds from long-term debt						$ 2,500,000	$ 3,401,000
Payments of Financing Costs						$ 160,000	277,000
Minimum excess availability on Combined Loan Cap						10.00%
Minimum amount excess availability on Combined Loan Cap						$ 7,000,000
Asset-based senior secured facilities committed period	5 years
Sale and leaseback, transaction date						June 6, 2017
Sale and leaseback transaction, financing agreement period			3 years
Sale and leaseback, description of assets						certain furniture, fixtures and software
Monthly payments for first 24 months			$ 123,000
Monthly payments under leaseback arrangement for 25 to 36 months			48,000
Sale and leaseback, payment terms						Monthly payments under the leaseback arrangement are $123,000 for the first 24 months and $48,000 for months 25 to 36.
Principal outstanding						$ 1,680,000	2,947,000
Equipment Loan
Debt Instrument [Line Items]
Principal outstanding under equipment note						$ 3,730,000	7,064,000
Equipment financing arrangement period						5 years
Percentage of interest on equipment financing arrangement					3.38%
Monthly payments for equipment financing arrangement					$ 272,000
Debt instrument maturity date					Dec. 31, 2019
ABL
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 52,000,000
FILO Term Loan
Debt Instrument [Line Items]
Loan available for borrowing	$ 24,000,000
Minimum | London Interbank Offered Rate (LIBOR) | ABL
Debt Instrument [Line Items]
Applicable margin rate	1.50%
Minimum | London Interbank Offered Rate (LIBOR) | FILO Term Loan
Debt Instrument [Line Items]
Applicable margin rate	3.25%
Minimum | Base Rate | ABL
Debt Instrument [Line Items]
Applicable margin rate	0.50%
Minimum | Base Rate | FILO Term Loan
Debt Instrument [Line Items]
Applicable margin rate	2.25%
Maximum | London Interbank Offered Rate (LIBOR) | ABL
Debt Instrument [Line Items]
Applicable margin rate	2.00%
Maximum | London Interbank Offered Rate (LIBOR) | FILO Term Loan
Debt Instrument [Line Items]
Applicable margin rate	3.75%
Maximum | Base Rate | ABL
Debt Instrument [Line Items]
Applicable margin rate	1.00%
Maximum | Base Rate | FILO Term Loan
Debt Instrument [Line Items]
Applicable margin rate	2.75%
Term Loan
Debt Instrument [Line Items]
Loan available for borrowing		$ 25,000,000
Line of credit maturity date		Jan. 31, 2023
Proceeds from long-term debt		$ 22,500,000
Proceeds from loan		3,600,000
Additional loan available for borrowing		$ 2,500,000
Period of delivery to the lender		45 days
Additional loan amount borrowed								$ 2,500,000
Minimum excess availability on Combined Loan Cap		10.00%
Minimum amount excess availability on Combined Loan Cap		$ 7,000,000
Credit Facility Description of Variable Rate Basis						The interest rate on the Term Loan is equal to a LIBOR rate plus 9.0%.
Debt Instrument, frequency of periodic payment						Quarterly
Debt instrument, payment terms						The Term Loan can be prepaid at the Company's option subject to certain restrictions and subject to a prepayment premium as follows: 1) if the prepayment occurs on or prior to the second anniversary of the Closing Date, the greater of??a) interest on the prepayment that would otherwise have been paid with the 24 month period following the Closing Date minus actual interest payments made through the prepayment date and b) 2% of the prepayment and 2) 2% of the prepayment amount if paid between the second and third anniversary of the Closing Date.
Debt Instrument, frequency of periodic payment, commencing date						Jul. 31, 2018
Dividends payment or share repurchases prohibition period						3 years
Deferred financing costs						$ 2,460,000
Principal outstanding						$ 24,375,000
Proceeds from equipment financing transaction			$ 3,401,000
Term Loan | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Applicable margin rate		9.00%
Term Loan | Minimum
Debt Instrument [Line Items]
Debt instruments, periodic payments, principal		$ 312,500
Term Loan | Maximum
Debt Instrument [Line Items]
Loan available for borrowing		25,000,000
Prior Term Loan Agreement
Debt Instrument [Line Items]
Line of credit maturity date				Mar. 25, 2021
Repayment of existing balance		22,999,000
Payments of Financing Costs		3,226,000
Minimum excess availability on Combined Loan Cap									10.00%
Minimum amount excess availability on Combined Loan Cap									$ 10,000,000
Credit Facility Description of Variable Rate Basis						The interest rate on the Prior Term Loan was equal to a LIBOR rate (with a 1.0% LIBOR floor) plus 7.5%.
Long-term debt				$ 32,000,000
Additional reserve against availability under credit facility that will be reduced for prepayment of term loan									$ 5,000,000
Deferred financing costs		4,557,000
Loss on extinguishment of debt		$ (1,542,000)
Principal outstanding							$ 24,599,000
Prior Term Loan Agreement | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Applicable margin rate				7.50%
Debt instrument, interest rate				1.00%
Prior Term Loan Agreement | Minimum
Debt Instrument [Line Items]
Debt instruments, periodic payments, principal				$ 800,000