Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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Fixed interest rate related to the interest rate derivative.

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The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

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The number of derivative instruments of a particular group held by the entity.

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Fair value as of the balance sheet date of all derivatives not designated as hedging instruments.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments.

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Derivative Financial Instruments (Details)			3 Months Ended		6 Months Ended
Derivative Financial Instruments (Details)	Jan. 03, 2017 USD ($) derivative	Jan. 02, 2017	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)	Dec. 28, 2016 contract	Dec. 31, 2009 USD ($)
Derivative Financial Instruments
Notional amount			$ 27,300,000		$ 27,300,000
Estimated gain (loss) on fair value of open contracts related to mortgage servicing rights					9,000	$ 1,800,000
After-tax unrealized gain on cash flow hedge in other comprehensive income			23,000	$ 14,000	67,000	35,000
Cash flow hedge liability			389,000		389,000		$ 776,000
Ineffectiveness in the cash flow hedge			0	0	0	0
Collateral provided			450,000	850,000	450,000	850,000
Number of interest rate swaps contracts that were classified as non-designated hedges \| contract								2
Number of interest rate swaps held to facilitate a risk management strategy \| contract								1
Fair value of non-designated interest rate swaps recorded in other assets and other liabilities			5,000		5,000
5.35 % Rate of interest
Derivative Financial Instruments
Junior subordinated debt issued by capital trusts	$ 10,000,000
Mortgage loan pipeline
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Obligation			115,820,000	129,570,000	115,820,000	129,570,000	85,445,000
Expected closures
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Obligation			86,865,000	97,177,000	86,865,000	97,177,000	64,083,000
Interest rate contracts \| 3 month LIBOR
Derivative Financial Instruments
Notional amount			$ 8,000,000		$ 8,000,000
Interest rate contracts \| Cash flow hedge
Derivative Financial Instruments
Notional amount									$ 8,000,000
Interest rate contracts \| Cash flow hedge \| 3 month LIBOR
Derivative Financial Instruments
Fixed rate payable on notional amount (as a percent)			4.06%		4.06%
Fixed interest rate on interest rate swap (as a percent)			4.06%		4.06%
Mortgage servicing rights hedging \| Non-designated hedges
Derivative Financial Instruments
Notional amount			$ 102,500,000		$ 102,500,000		120,000,000
Mortgage loan pipeline commitments
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Obligation			1,568,000	3,257,000	1,568,000	3,257,000	1,037,000
Forward sales commitments
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Obligation			109,525,000	120,000,000	109,525,000	120,000,000	97,092,000
Fair value of forward commitments			$ (89,000)	$ 1,437,000	$ (89,000)	$ 1,437,000	$ (1,366,000)
SBFC \| Junior Subordinated Debt
Derivative Financial Instruments
Junior subordinated debt issued by capital trusts	$ 20,600,000
SBFC \| 3 month LIBOR
Derivative Financial Instruments
Spread on variable rate basis on junior subordinated debt (as a percent)	(2.36%)	1.40%
SBFC \| Interest rate contracts
Derivative Financial Instruments
Notional amount	$ 10,000,000
Number of interest rate swaps acquired \| derivative	2
SBFC \| Interest rate contracts \| 5.35 % Rate of interest
Derivative Financial Instruments
Fixed rate payable on notional amount (as a percent)	5.35%
Fixed interest rate on interest rate swap (as a percent)	5.35%