Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)		12 Months Ended
	Mar. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2019
Summary Of Significant Accounting Policies [Line Items]
Accounts receivable, net		$ 10,622,000	$ 11,010,000
Allowance for doubtful accounts		200,000	200,000
Earned revenue accrued but not billed		0	0
Impairment charges on indefinite-lived intangible assets		6,200,000
Impairment charges on finite-lived intangible assets		0	0
Restricted cash		1,100,000	1,500,000
Investment without readily determinable fair value		100,000	100,000
Advertising cost during the period		900,000	300,000
Operating lease right-of-use assets		9,250,000
Operating lease obligation		11,525,000
Unrecognized Tax Benefits		0	0
Promissory Note Receivable [Member]
Summary Of Significant Accounting Policies [Line Items]
Gross financing receivable	$ 900,000
Maturity date of promissory note receivable	Apr. 01, 2019
Effective yield on receivable with imputed interest (interest rate)	5.10%
Promissory note receivable		0	900,000
Trademarks [Member]
Summary Of Significant Accounting Policies [Line Items]
Impairment charges on indefinite-lived intangible assets		$ 6,200,000
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment (in years)		3 years
Estimated useful life of finite-lived intangible asset (in years)		4 years
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment (in years)		7 years
Estimated useful life of finite-lived intangible asset (in years)		18 years
Irrevocable Letter Of Credit [Member]
Summary Of Significant Accounting Policies [Line Items]
Restricted cash		$ 1,100,000	1,100,000
Security Deposit [Member]
Summary Of Significant Accounting Policies [Line Items]
Restricted cash			$ 400,000
Restatement Adjustment [Member] \| Accounting Standards Update 2016-02
Summary Of Significant Accounting Policies [Line Items]
Operating lease right-of-use assets				$ 10,400,000
Operating lease obligation				13,200,000
Accrued rent offset to Operating lease right-of-use assets				$ 2,800,000