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Leases - Additional Information (Details)				6 Months Ended
	Jul. 02, 2020 USD ($)	Jul. 01, 2020 USD ($)	Jun. 25, 2020 USD ($)	Jun. 30, 2020 USD ($) ft²
Lessor Lease Description [Line Items]
Lease term				12 months
Lease, description				(i) the 2014 Sublease and 2015 Sublease were extended from May 31, 2020 to August 2, 2021, and (ii) effective July 1, 2020, the leased premises under the 2015 Sublease would be expanded to include an additional 4,999 square ft of space, and (ii) effective July 1, 2020, the rent under the 2015 Sublease would increase from approximately $14,559 per month to $20,643 per month
Extension of sublease				May 31, 2020 to August 2, 2021
Sub lease expiration date				Aug. 02, 2021
Operating or finance lease			$ 0	$ 264,000
2015 Sub-Lease Agreement [Member]
Lessor Lease Description [Line Items]
Additional area of space | ft²				4,999
Increase in sublease rent	$ 20,643	$ 14,559
2021 Sub-Lease Agreement [Member]
Lessor Lease Description [Line Items]
Sublease rent			$ 3,721.50

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Increase in lease rent expenses.

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Area of land held.

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- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

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- Definition

Amount of lease cost recognized by lessee for lease contract.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980

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- Definition

Date which lease or group of leases is set to expire, in CCYY-MM-DD format.

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- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Description of lessor's operating lease.

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Description of terms and conditions of option to extend lessor's operating lease.

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-Section 50
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