Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
AFS Securities	$ 9,029	$ 11,978
U.S. Treasury Securities [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
AFS Securities	999	1,981
U.S. Government Agency Notes [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
AFS Securities	8,030	9,997
Level 1 [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
AFS Securities	999	1,981
Level 2 [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
AFS Securities	8,030	9,997
Loans held for sale ("LHFS")	17,587	9,686
Best efforts forward contracts	26
Level 3 [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Mortgage servicing rights ("MSRs")	316	437
Interest rate lock commitments ("IRLCs")	180	100
Carrying Value [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
AFS Securities	9,029	11,978
Loans held for sale ("LHFS")	17,587	9,686
Mortgage servicing rights ("MSRs")	316	437
Interest rate lock commitments ("IRLCs")	180	100
Best efforts forward contracts	26
Recurring [Member] | Mandatory Forward Contract Liability
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Total changes in fair values included in period income		(30)
Recurring [Member] | Best Effort Forward Contracts [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Total changes in fair values included in period income		(3)
Recurring [Member] | LHFS [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Total changes in fair values included in period income	(373)	192
Recurring [Member] | MSRs [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Total changes in fair values included in period income	(121)	(40)
Recurring [Member] | IRLCs [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Total changes in fair values included in period income	80	78
Recurring [Member] | Mandatory Forward Contracts [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Total changes in fair values included in period income	63
Recurring [Member] | Best Effort Forward Contracts [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Total changes in fair values included in period income	26
Recurring [Member] | Level 1 [Member] | U.S. Treasury Securities [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
AFS Securities	999	1,981
Recurring [Member] | Level 2 [Member] | Mandatory Forward Contract Liability
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Mandatory forward contracts		16
Recurring [Member] | Level 2 [Member] | U.S. Government Agency Notes [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
AFS Securities	8,030	9,997
Recurring [Member] | Level 2 [Member] | LHFS [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Loans held for sale ("LHFS")	17,587	9,686
Recurring [Member] | Level 2 [Member] | Mandatory Forward Contracts [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Mandatory forward contracts	46
Recurring [Member] | Level 2 [Member] | Best Effort Forward Contracts [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Best efforts forward contracts	26
Recurring [Member] | Level 3 [Member] | MSRs [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Mortgage servicing rights ("MSRs")	316	437
Recurring [Member] | Level 3 [Member] | IRLCs [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Interest rate lock commitments ("IRLCs")	180	100
Recurring [Member] | Carrying Value [Member] | Mandatory Forward Contract Liability
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Mandatory forward contracts		16
Recurring [Member] | Carrying Value [Member] | U.S. Treasury Securities [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
AFS Securities	999	1,981
Recurring [Member] | Carrying Value [Member] | U.S. Government Agency Notes [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
AFS Securities	8,030	9,997
Recurring [Member] | Carrying Value [Member] | LHFS [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Loans held for sale ("LHFS")	17,587	9,686
Recurring [Member] | Carrying Value [Member] | MSRs [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Mortgage servicing rights ("MSRs")	316	437
Recurring [Member] | Carrying Value [Member] | IRLCs [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Interest rate lock commitments ("IRLCs")	180	$ 100
Recurring [Member] | Carrying Value [Member] | Mandatory Forward Contracts [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Mandatory forward contracts	46
Recurring [Member] | Carrying Value [Member] | Best Effort Forward Contracts [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Best efforts forward contracts	$ 26