Concentration of Credit Risk (Narrative) (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Concentration of Credit Risk [Abstract]
Real estate secured loan credit risk concentration percentage	81.35%	80.38%
Secured accounts by the FDIC	$ 250,000
Uninsured accounts by the FDIC	$ 9,500,000	$ 11,000,000

The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation.

No definition available.

Name:	us-gaap_CashFDICInsuredAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant