Business Combinations (Details) - Schedule of business combinations - USD ($) $ in Thousands		Dec. 31, 2016	Jul. 01, 2014
Business Acquisition [Line Items]
Cash and cash equivalents		$ 70,318
Investment securities		28,452
Restricted investments		13,646
Loans held-for-sale		190
Loans		1,299,284
Bank owned life insurance		15,481
Premises and equipment, net		6,475
Accrued interest receivable		4,470
Core deposit intangible		5,308
Other real estate owned		2,455
Other assets		14,286
Deposits		(1,051,342)
Borrowings		(263,370)
Other liabilities		(10,527)
Total identifiable net assets		135,126
Goodwill recorded in the Merger		129,105	$ 129,105
Fair Value Adjustments [Member]
Business Acquisition [Line Items]
Cash and cash equivalents
Investment securities	[1]	16
Restricted investments
Loans held-for-sale
Loans	[2]	(5,316)
Bank owned life insurance
Premises and equipment, net	[3]	(905)
Accrued interest receivable
Core deposit intangible	[4]	5,308
Other real estate owned
Other assets	[5]	3,650
Deposits	[6]	(1,676)
Borrowings	[7]	(1,324)
Other liabilities
Total identifiable net assets		(247)
Legacy Connect One [Member]
Business Acquisition [Line Items]
Cash and cash equivalents		70,318
Investment securities		28,436
Restricted investments		13,646
Loans held-for-sale		190
Loans		1,304,600
Bank owned life insurance		15,481
Premises and equipment, net		7,380
Accrued interest receivable		4,470
Core deposit intangible
Other real estate owned		2,455
Other assets		10,636
Deposits		(1,049,666)
Borrowings		(262,046)
Other liabilities		(10,527)
Total identifiable net assets		$ 135,373

[1] Represents the fair value adjustment on investment securities held-to-maturity.

[2] Represents the elimination of Legacy ConnectOne's allowance for loan and lease losses, deferred fees, deferred costs and an adjustment of the amortized cost of loans to estimated fair value, which includes an interest rate mark and credit mark.

[3] Represent an adjustment to reflect the fair value of above-market rent on leased premises. The above-market rent adjustment will be amortized on a straight-line basis over the remaining term of the respective leases.

[4] Represents intangible assets recorded to reflect the fair value of core deposits. The core deposit asset was recorded as an identifiable intangible asset and will be amortized on an accelerated basis over the estimated average life of the deposit base.

[5] Consist primarily of adjustments in net deferred tax assets resulting from the fair value adjustments related to acquired assets, liabilities assumed and identifiable intangibles recorded.

[6] Represents fair value adjustment on time deposits as the weighted average interest rates of time deposits assumed exceeded the costs of similar funding available in the market at the time of the Merger, as well as the elimination of fees paid on brokered time deposits.

[7] Represents the fair value adjustment on FHLB borrowings as the weighted average interest rate of FHLB borrowings assumed exceeded the cost of similar funding available in the market at the time of the Merger.