XML 21 R8.htm IDEA: XBRL DOCUMENT
v3.20.2

Significant Accounting Policies | 6 Months Ended
--- | ---
Jun. 30, 2020
Significant Accounting Policies |
Significant Accounting Policies | 2. Significant Accounting Policies Significant accounting policies are included in the 2019 Financial Statements. ​

X
- References No definition available. + Details
Name: | us-gaap_DisclosureTextBlockAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for all significant accounting policies of the reporting entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 + Details
Name: | us-gaap_SignificantAccountingPoliciesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration