For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13531-108611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13537-108611

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Concentration of Credit Risk and Significant Customers (Details) - Customer Concentration Risk	6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Revenue \| Customer A
Concentration Risk [Line Items]
Percentage of revenue or accounts receivable		15.90%
Revenue \| Customer B
Concentration Risk [Line Items]
Percentage of revenue or accounts receivable		14.20%
Revenue \| Customer C
Concentration Risk [Line Items]
Percentage of revenue or accounts receivable	78.20%	11.30%
Revenue \| Customer D
Concentration Risk [Line Items]
Percentage of revenue or accounts receivable	16.80%	43.10%
Accounts Receivable \| Customer C
Concentration Risk [Line Items]
Percentage of revenue or accounts receivable	51.20%		60.00%
Accounts Receivable \| Customer D
Concentration Risk [Line Items]
Percentage of revenue or accounts receivable	27.40%		20.40%