|12 Months Ended|
Dec. 31, 2020
|Payables and Accruals [Abstract]|
7. Accrued Liabilities
As of December 31, 2020 and 2019, accrued liabilities consisted of the following:
The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
No definition available.