Business Combination Number Of Common Stock Shares Purchased

No definition available.

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- Definition

Business Combination Share Exchange Ratio

+ References

No definition available.

+ Details

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- Definition

Number Of Outstanding Common Stock Shares To Be Exchanged In Business Combination

+ References

No definition available.

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- Definition

Percent Of Outstanding Common Stock In Business combination

+ References

No definition available.

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- Definition

Date when the business acquisition agreement was executed, in CCYY-MM-DD format.

+ References

No definition available.

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- Definition

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e845-128460

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the best estimate at the acquisition date of the contractual cash flows not expected to be collected, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472

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Period Type:	instant

- Definition

For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the gross contractual amounts receivable, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 23
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- Definition

Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

No definition available.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
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Business Combinations (Narrative) (Details)		12 Months Ended
Business Combinations (Narrative) (Details)	Oct. 01, 2016 USD ($) $ / shares shares	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Business Acquisition [Line Items]
Goodwill		$ 15,525,000	$ 15,590,000
East River Bank (“ERB”) [Member]
Business Acquisition [Line Items]
Business acquisition date of acquisition agreement		Apr. 04, 2016
Business acquisition effective date of acquisition		Oct. 01, 2016
Business combination shares conversion ratio	0.6562
Business acquisition share price \| $ / shares	$ 18.65
Business combination number of outstanding common stock shares to be exchanged \| shares	2,085,662
Business combination percentage of outstanding common stock	85.30%
Aggregate cash consideration payable to ERB shareholders	$ 6,700,000
Goodwill	15,590,000
Core deposit and other intangible	508,000
Loans receivable with a gross amortized cost basis	312,279,000
Merger related costs incurred	4,700,000
East River Bank (“ERB”) [Member] \| Interest Rate Fair Value Adjustment on Pools of Homogeneous Loan [Member]
Business Acquisition [Line Items]
Fair value discount amount	200,000
East River Bank (“ERB”) [Member] \| Credit Fair Value Adjustment on Pools of Homogeneous Loans [Member]
Business Acquisition [Line Items]
Fair value discount amount	$ 4,846,000
East River Bank (“ERB”) [Member] \| Options to Purchase ERB Common Stock Outstanding Shares [Member]
Business Acquisition [Line Items]
Business combination number of common stock shares acquired \| shares	248,000
Cash paid in business combination	$ 1,900,000
East River Bank (“ERB”) [Member] \| Payment in Lieu Of Fractional Shares [Member]
Business Acquisition [Line Items]
Cash paid in business combination	$ 2,399
East River Bank (“ERB”) [Member] \| Core Deposit Intangible [Member]
Business Acquisition [Line Items]
Intangible assets amortization period		10 years
Amortization expense in 2017		$ 90,000
Amortization expense in 2018		81,000
Amortization expense in 2019		72,000
Amortization expense in 2020		62,000
Amortization expense in 2021		53,000
Amortization expense after 2021		$ 127,000