Derivative Instruments - (Details Textual)	1 Months Ended
	Jun. 30, 2014 USD ($) derivative_instrument	Sep. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 01, 2013 USD ($)	Apr. 30, 2012 USD ($) derivative_instrument
Interest rate contracts with corporate customers
Derivative Instruments (Textual) [Abstract]
Notional amount		$ 80,065,000
Offsetting interest rate contracts with other financial institutions
Derivative Instruments (Textual) [Abstract]
Notional amount		80,065,000
Interest rate swaps
Derivative Instruments (Textual) [Abstract]
Number of instruments held | derivative_instrument	2
Floating rate liability at the bank level, derivative one
Derivative Instruments (Textual) [Abstract]
Notional amount	$ 15,000,000
Term of contract (in years)	4 years
Floating rate liability at the bank level, derivative two
Derivative Instruments (Textual) [Abstract]
Notional amount	$ 15,000,000
Term of contract (in years)	5 years
Cash flow hedging
Derivative Instruments (Textual) [Abstract]
Notional amount					$ 32,000,000
Number of instruments held | derivative_instrument					2
Cash flow hedging | First M&F
Derivative Instruments (Textual) [Abstract]
Notional amount				$ 30,000,000
Commitments to fund fixed-rate residential mortgage loans
Derivative Instruments (Textual) [Abstract]
Notional amount		265,911,000	$ 251,676,000
Commitments to sell residential mortgage loans
Derivative Instruments (Textual) [Abstract]
Notional amount		$ 353,000,000	$ 293,500,000