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Loans and the Allowance for Loan Losses (Details) - Schedule of allowance for loan losses - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance									$ 25,744	$ 26,572	$ 14,160
Loans charged-off									(239)	(39,573)	(538)
Recoveries									243	45	345
Provision for loan losses	$ 2,000	$ 1,450	$ 1,450	$ 1,100	$ 25,200	$ 6,750	$ 3,750	$ 3,000	6,000	38,700	12,605
Balance	31,748				25,744				31,748	25,744	26,572
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance									6,632	10,949	3,083
Loans charged-off									(70)	(39,343)	(101)
Recoveries									178	4	13
Provision for loan losses									1,493	35,022	7,954
Balance	8,233				6,632				8,233	6,632	10,949
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance									12,583	10,926	7,799
Loans charged-off									(155)	(107)	(406)
Recoveries									51	35	327
Provision for loan losses									4,633	1,729	3,206
Balance	17,112				12,583				17,112	12,583	10,926
Construction Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance									4,789	3,253	1,239
Loans charged-off
Recoveries
Provision for loan losses									(42)	1,536	2,014
Balance	4,747				4,789				4,747	4,789	3,253
Residential Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance									958	976	1,113
Loans charged-off										(94)
Recoveries									12	3	2
Provision for loan losses									80	73	(139)
Balance	1,050				958				1,050	958	976
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance									3	4	7
Loans charged-off									(14)	(29)	(31)
Recoveries									2	3	3
Provision for loan losses									10	25	25
Balance	1				3				1	3	4
Unallocated Financing Receivables [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance									799	464	919
Loans charged-off
Recoveries
Provision for loan losses									(174)	315	(455)
Balance	$ 605				$ 799				$ 605	$ 799	$ 464

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Amount of recovery of financing receivables doubtful of collection that were previously charged off.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
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Amount of direct write-downs of financing receivables charged against the allowance.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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