Commitments and Contingencies (Textual) [Abstract]

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- Definition

Number of security owned and pledged as collateral.

+ References

No definition available.

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- Definition

Year of expiration of Operating lease in CCYY format

+ References

No definition available.

+ Details

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- Definition

Percentage of unsecured loans.

+ References

No definition available.

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- Definition

Cash deposited in a special reserve account for the exclusive benefit of customers pursuant to SEC Regulations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 305
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6478312&loc=d3e61473-112792

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- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

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- Definition

Term of lessor's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888428&loc=SL77919359-209981

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- Definition

Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (b)(1)(i)
-URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729

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-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66007379&loc=d3e113888-111728

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Commitments and Contingencies (Details Textual)	12 Months Ended
Commitments and Contingencies (Details Textual)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($) Security	Dec. 31, 2016 USD ($)
Commitments and Contingencies (Textual) [Abstract]
Operating leases extending	2028
Rental and lease expense	$ 184,000	$ 230,000	$ 183,000
Aggregate cash reserves for federal regulatory requirements	$ 6,800,000
Percentage of unsecured loans	0.28%	0.30%
Third party interest rate swap
Commitments and Contingencies (Textual) [Abstract]
Security pledged for collateral		$ 1,400,000
Third party interest rate swap \| U.S. Government-sponsored mortgage-backed securities
Commitments and Contingencies (Textual) [Abstract]
Number of security owned and pledged as collateral \| Security		1
Minimum
Commitments and Contingencies (Textual) [Abstract]
Operating leases renewal period	5 years
Maximum
Commitments and Contingencies (Textual) [Abstract]
Operating leases renewal period	10 years