Preferred stock	12 Months Ended
Dec. 31, 2020
Preferred stock
Preferred stock	10. Preferred stock The Company has authorized preferred stock amounting to 5,000,000 shares as of December 31, 2020 and 2019.

The entire disclosure for terms, amounts, nature of changes, rights and privileges, dividends, and other matters related to preferred stock.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-URI http://asc.fasb.org/topic&trid=2208762

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