Investment Securities (Tables)

9 Months Ended

Sep. 30, 2016

Investments, Debt and Equity Securities [Abstract]

Available-For-Sale Securities [Table Text Block]

The following table is the schedule of Available-For-Sale Securities at September 30, 2016, December 31, 2015 and September 30, 2015:

Available-For-Sale Securities
	U.S. Agency Obligations		State and Municipal Obligations		Mortgage- Backed Securities - Residential		Corporate and Other Debt Securities		Mutual Funds and Equity Securities		Total Available- For-Sale Securities
September 30, 2016
Available-For-Sale Securities,   at Amortized Cost	$	152,511	$	31,562	$	144,598	$	4,500	$	1,120	$	334,291
Available-For-Sale Securities,   at Fair Value	153,926		31,628		148,087		4,299		1,250		339,190
Gross Unrealized Gains	1,415		69		3,489		—		130		5,103
Gross Unrealized Losses	—		3		—		201		—		204
Available-For-Sale Securities,   Pledged as Collateral											277,832
Maturities of Debt Securities,   at Amortized Cost:
Within One Year	$	—	$	19,303	$	10,214	$	2,000	$	—	$	31,517
From 1 - 5 Years	152,511		11,191		129,956		1,500		—		295,158
From 5 - 10 Years	—		508		4,370		—		—		4,878
Over 10 Years	—		560		58		1,000		—		1,618
Maturities of Debt Securities,   at Fair Value:
Within One Year	$	—	$	19,304	$	10,294	$	1,999	$	—	$	31,597
From 1 - 5 Years	153,926		11,256		132,916		1,500		—		299,598
From 5 - 10 Years	—		508		4,814		—		—		5,322
Over 10 Years	—		560		63		800		—		1,423
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	—	$	9,237	$	—	$	1,022	$	—	$	10,259
12 Months or Longer	—		—		—		1,800		—		1,800
Total	$	—	$	9,237	$	—	$	2,822	$	—	$	12,059
Number of Securities in a   Continuous Loss Position	—		1		2		3		—		6
Unrealized Losses on   Securities in a Continuous   Loss Position:
Less than 12 Months	$	—	$	3	$	—	$	1	$	—	$	4
12 Months or Longer	—		—		—		200		—		200
Total	$	—	$	3	$	—	$	201	$	—	$	204
December 31, 2015
Available-For-Sale Securities,   at Amortized Cost	$	155,932	$	52,306	$	177,376	$	14,544	$	1,120	$	401,278
Available-For-Sale Securities,   at Fair Value	155,782		52,408		178,588		14,299		1,232		402,309
Gross Unrealized Gains	264		105		2,236		—		112		2,717
Gross Unrealized Losses	414		3		1,024		245		—		1,686
Available-For-Sale Securities,   Pledged as Collateral											310,857

Available-For-Sale Securities
	U.S. Agency Obligations		State and Municipal Obligations		Mortgage- Backed Securities - Residential		Corporate and Other Debt Securities		Mutual Funds and Equity Securities		Total Available- For-Sale Securities
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	76,802	$	4,289	$	99,569	$	3,616	$	—	$	184,276
12 Months or Longer	—		1,443		903		10,671		—		13,017
Total	$	76,802	$	5,732	$	100,472	$	14,287	$	—	$	197,293
Number of Securities in a   Continuous Loss Position	21		19		30		19		—		89
Unrealized Losses on   Securities in a Continuous   Loss Position:
Less than 12 Months	$	413	$	2	$	1,023	$	2	$	—	$	1,440
12 Months or Longer	1		1		1		243		—		246
Total	$	414	$	3	$	1,024	$	245	$	—	$	1,686
September 30, 2015
Available-For-Sale Securities,   at Amortized Cost	$	161,253	$	55,263	$	158,351	$	16,871	$	1,120	$	392,858
Available-For-Sale Securities,   at Fair Value	162,518		55,486		161,637		16,672		1,246		397,559
Gross Unrealized Gains	1,269		223		3,292		12		125		4,921
Gross Unrealized Losses	4		—		6		211		—		221
Available-For-Sale Securities,   Pledged as Collateral											348,115
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	—	$	—	$	—	$	—	$	—	$	—
12 Months or Longer	12,996		406		4,775		7,162		—		25,339
Total	$	12,996	$	406	$	4,775	$	7,162	$	—	$	25,339
Number of Securities in a   Continuous Loss Position	3		1		1		11		—		16
Unrealized Losses on Securities   in a Continuous Loss Position:
Less than 12 Months	$	—	$	—	$	—	$	—	$	—	$	—
12 Months or Longer	4		—		6		211		—		221
Total	$	4	$	—	$	6	$	211	$	—	$	221

Held-To-Maturity Securities [Table Text Block]

The following table is the schedule of Held-To-Maturity Securities at September 30, 2016, December 31, 2015 and September 30, 2015:

Held-To-Maturity Securities
	State and Municipal Obligations		Mortgage- Backed Securities - Residential		Corporate and Other Debt Securities		Total Held-To Maturity Securities
September 30, 2016
Held-To-Maturity Securities,   at Amortized Cost	$	257,255	$	79,983	$	1,000	$	338,238
Held-To-Maturity Securities,   at Fair Value	263,897		82,544		1,000		347,441
Gross Unrealized Gains	6,712		2,561		—		9,273
Gross Unrealized Losses	70		—		—		70
Held-To-Maturity Securities,   Pledged as Collateral							320,774

Held-To-Maturity Securities
	State and Municipal Obligations		Mortgage- Backed Securities - Residential		Corporate and Other Debt Securities		Total Held-To Maturity Securities
Maturities of Debt Securities,   at Amortized Cost:
Within One Year	$	35,911	$	—	$	—	$	35,911
From 1 - 5 Years	87,464		72,422		—		159,886
From 5 - 10 Years	129,891		7,561		—		137,452
Over 10 Years	3,989		—		1,000		4,989
Maturities of Debt Securities,   at Fair Value:
Within One Year	$	35,966	$	—	$	—	$	35,966
From 1 - 5 Years	89,979		74,680		—		164,659
From 5 - 10 Years	133,817		7,864		—		141,681
Over 10 Years	4,135		—		1,000		5,135
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	11,891	$	—	$	—	$	11,891
12 Months or Longer	1,172		—		—		1,172
Total	$	13,063	$	—	$	—	$	13,063
Number of Securities in a   Continuous Loss Position	3		—		—		3
Unrealized Losses on Securities    in a Continuous Loss Position:
Less than 12 Months	$	68	$	—	$	—	$	68
12 Months or Longer	2		—		—		2
Total	$	70	$	—	$	—	$	70
December 31, 2015
Held-To-Maturity Securities,   at Amortized Cost	$	226,053	$	93,558	$	1,000	$	320,611
Held-To-Maturity Securities,   at Fair Value	230,621		94,309		1,000		325,930
Gross Unrealized Gains	4,619		868		—		5,487
Gross Unrealized Losses	51		117		—		168
Held-To-Maturity Securities,   Pledged as Collateral							299,767
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	2,302	$	6,000	$	—	$	8,302
12 Months or Longer	11,764		4,154		—		15,918
Total	$	14,066	$	10,154	$	—	$	24,220
Number of Securities in a   Continuous Loss Position	54		8		—		62
Unrealized Losses on   Securities in a Continuous   Loss Position:
Less than 12 Months	$	11	$	93	$	—	$	104
12 Months or Longer	40		24		—		64
Total	$	51	$	117	$	—	$	168

Held-To-Maturity Securities
	State and Municipal Obligations		Mortgage- Backed Securities - Residential		Corporate and Other Debt Securities		Total Held-To Maturity Securities
September 30, 2015
Held-To-Maturity Securities,   at Amortized Cost	$	218,502	$	97,978	$	1,000	$	317,480
Held-To-Maturity Securities,   at Fair Value	223,050		99,959		1,000		324,009
Gross Unrealized Gains	4,633		1,981		—		6,614
Gross Unrealized Losses	85		—		—		85
Held-To-Maturity Securities,   Pledged as Collateral							296,921
Securities in a Continuous   Loss Position, at Fair Value:
Less than 12 Months	$	—	$	—	$	—	$	—
12 Months or Longer	14,896		—		—		14,896
Total	$	14,896	$	—	$	—	$	14,896
Number of Securities in a   Continuous Loss Position	51		—		—		51
Unrealized Losses on   Securities in a Continuous   Loss Position:
Less than 12 Months	$	—	$	—	$	—	$	—
12 Months or Longer	85		—		—		85
Total	$	85	$	—	$	—	$	85