Restrictions on Cash and Due from Banks	12 Months Ended
Dec. 31, 2020
Restrictions on Cash and Due from Banks [Abstract]
Restrictions on Cash and Due from Banks	4. RESTRICTIONS ON CASH AND DUE FROM BANKS The Bank is required to maintain cash reserve balances with the Federal Reserve Bank if vault cash is insufficient to cover the reserve requirement. As of December 31, 2020 and 2019, respectively, no reserves were required to be held at the Federal Reserve Bank.

The entire disclosure for assets that are restricted in their use, generally by contractual agreements or regulatory requirements. This would include, but not limited to, a description of the restricted assets and the terms of the restriction.

No definition available.

Name:	us-gaap_RestrictedAssetsDisclosureTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration