Fair Value Measurements and Fair Value of Financial Instruments (Details) - Schedule of Assets at Fair Value on Non-Recurring - Non-recurring [Member] - Impaired Loans [Member] - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Commercial Real Estate [Member]
Assets measured at fair value on a nonrecurring basis:
Assets measured at fair value	$ 1,092	$ 1,094
Commercial Real Estate [Member] | Fair Value, Inputs, Level 1 [Member]
Assets measured at fair value on a nonrecurring basis:
Assets measured at fair value
Commercial Real Estate [Member] | Fair Value, Inputs, Level 2 [Member]
Assets measured at fair value on a nonrecurring basis:
Assets measured at fair value
Commercial Real Estate [Member] | Fair Value, Inputs, Level 3 [Member]
Assets measured at fair value on a nonrecurring basis:
Assets measured at fair value	1,092	$ 1,094
Commercial Construction Portfolio Segment [Member]
Assets measured at fair value on a nonrecurring basis:
Assets measured at fair value	2,554
Commercial Construction Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member]
Assets measured at fair value on a nonrecurring basis:
Assets measured at fair value
Commercial Construction Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member]
Assets measured at fair value on a nonrecurring basis:
Assets measured at fair value
Commercial Construction Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member]
Assets measured at fair value on a nonrecurring basis:
Assets measured at fair value	2,554
Commercial taxi medallion loans [Member]
Assets measured at fair value on a nonrecurring basis:
Assets measured at fair value	29,405
Commercial taxi medallion loans [Member] | Fair Value, Inputs, Level 1 [Member]
Assets measured at fair value on a nonrecurring basis:
Assets measured at fair value
Commercial taxi medallion loans [Member] | Fair Value, Inputs, Level 2 [Member]
Assets measured at fair value on a nonrecurring basis:
Assets measured at fair value
Commercial taxi medallion loans [Member] | Fair Value, Inputs, Level 3 [Member]
Assets measured at fair value on a nonrecurring basis:
Assets measured at fair value	$ 29,405