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Deposits - Interest Expense on Deposits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Deposits [Abstract]
Interest-bearing demand accounts	$ 8	$ 21	$ 67
Money market accounts	855	472	418
Savings accounts	744	520	489
Certificates of deposit $250,000 and greater	472	480	614
Certificates of deposit less than $250,000	228	214	282
Total deposits	$ 2,307	$ 1,707	$ 1,870

X

- Definition

Interest Expense, Time Deposits, $250,000 or More

+ References

No definition available.

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- Definition

Interest Expense, Time Deposits, Less than $250,000

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- Definition

Aggregate amount of interest expense on all deposits.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.6)
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- Definition

Amount of interest expense on domestic notice of withdrawal demand deposit liabilities.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.6)
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- Definition

Interest expense incurred on all money market deposits.

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-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.6)
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- Definition

Interest expense incurred on all savings account deposits.

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-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
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