9. Regulatory (Details)	Jun. 30, 2017	Dec. 31, 2016
Tier One Leverage Capital Ratio	0.0530
Risk Based Capital Ratio	0.0979
BankMember
Tier One Leverage Capital Ratio	0.0530	0.0482
Risk Based Capital Ratio	0.0979	0.0908

Ratio of total risk-based capital to risk-weighted assets as defined by regulatory framework.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826

Name:	us-gaap_CapitalToRiskWeightedAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant