Derivative Financial Instruments, Effect on Statement of Operations (Details) - No Hedge Designation [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Effect of derivative financial instruments on the condensed consolidated financial statements of operations [Abstract]
Gain (Loss) Recognized in Income	$ (110)	$ 276	$ (97)	$ 625
Rate-Lock Mortgage Loan Commitments [Member] | Net Gains on Mortgage Loans [Member]
Effect of derivative financial instruments on the condensed consolidated financial statements of operations [Abstract]
Gain (Loss) Recognized in Income	130	(283)	349	105
Mandatory Commitments to Sell Mortgage Loans [Member] | Net Gains on Mortgage Loans [Member]
Effect of derivative financial instruments on the condensed consolidated financial statements of operations [Abstract]
Gain (Loss) Recognized in Income	(240)	559	(446)	520
Purchased Options [Member] | Interest Expense [Member]
Effect of derivative financial instruments on the condensed consolidated financial statements of operations [Abstract]
Gain (Loss) Recognized in Income	3	0	81	0
Written Options [Member] | Interest Expense [Member]
Effect of derivative financial instruments on the condensed consolidated financial statements of operations [Abstract]
Gain (Loss) Recognized in Income	(3)	0	(81)	0
Fixed Income Interest Rate [Member] | Interest Rate Swap [Member] | Interest Income [Member]
Effect of derivative financial instruments on the condensed consolidated financial statements of operations [Abstract]
Gain (Loss) Recognized in Income	(590)	221	(1,708)	(40)
Variable Income Interest Rate [Member] | Interest Rate Swap [Member] | Interest Income [Member]
Effect of derivative financial instruments on the condensed consolidated financial statements of operations [Abstract]
Gain (Loss) Recognized in Income	$ 590	$ (221)	$ 1,708	$ 40