Investment Securities (Tables)

12 Months Ended

Dec. 31, 2014

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 December 31, 2014 and 2013:

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
December 31, 2014
Available-For-Sale Securities,   at Amortized Cost	$	137,540	$	81,582	$	124,732	$	16,988	$	1,120	$	361,962
Available-For-Sale Securities,   at Fair Value	137,603		81,730		128,827		16,725		1,254		366,139
Gross Unrealized Gains	208		187		4,100		7		134		4,636
Gross Unrealized Losses	145		39		5		270		—		459
Available-For-Sale Securities,   Pledged as Collateral											267,384

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
Maturities of Debt Securities, at Amortized Cost:
Within One Year	—		28,273		2,878		2,303				33,454
From 1 - 5 Years	137,540		51,384		100,428		13,685				303,037
From 5 - 10 Years	—		1,285		21,426		—				22,711
Over 10 Years	—		640		—		1,000				1,640
Maturities of Debt Securities, at Fair Value:
Within One Year	—		28,329		2,888		2,307				33,524
From 1 - 5 Years	137,603		51,476		103,786		13,618				306,483
From 5 - 10 Years	—		1,285		22,153		—				23,438
Over 10 Years	—		640		—		800				1,440
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	$	39,631	$	3,309	$	82	$	—	$	—	$	43,022
12 Months or Longer	28,020		14,035		1,546		10,738		—		54,339
Total	$	67,651	$	17,344	$	1,628	$	10,738	$	—	$	97,361
Number of Securities in a   Continuous Loss Position	22		65		3		15		—		105
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$	48	$	—	$	—	$	—	$	—	$	48
12 Months or Longer	97		39		5		270		—		411
Total	$	145	$	39	$	5	$	270	$	—	$	459
December 31, 2013
Available-For-Sale Securities,   at Amortized Cost	$	136,868	$	127,224	$	171,321	$	17,142	$	1,120	$	453,675
Available-For-Sale Securities,   at Fair Value	136,475		127,389		175,778		16,798		1,166		457,606
Gross Unrealized Gains	2		306		4,714		10		46		5,078
Gross Unrealized Losses	395		141		257		354		—		1,147
Available-For-Sale Securities,   Pledged as Collateral											243,769
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	$	60,664	$	29,967	$	15,190	$	7,375	$	—	$	113,196
12 Months or Longer	33,849		4,597		11,841		6,063		—		56,350
Total	$	94,513	$	34,564	$	27,031	$	13,438	$	—	$	169,546
Number of Securities in a   Continuous Loss Position	26		107		13		19		—		165
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$	336	$	120	$	108	$	92	$	—	$	656
12 Months or Longer	59		21		149		262		—		491
Total	$	395	$	141	$	257	$	354	$	—	$	1,147

Held-to-maturity Securities [Table Text Block]

The following table is the schedule of Held-To-Maturity Securities at December 31, 2014 and 2013:

Held-To-Maturity Securities
	State and Municipal Obligations		Mortgage- Backed Securities - Residential		Corporate and Other Debt Securities		Total Held-To Maturity Securities
December 31, 2014
Held-To-Maturity Securities,   at Amortized Cost	$	188,472	$	112,552	$	1,000	$	302,024
Held-To-Maturity Securities,   at Fair Value	193,252		114,314		1,000		308,566
Gross Unrealized Gains	4,935		1,770		—		6,705
Gross Unrealized Losses	155		8		—		163
Held-To-Maturity Securities,   Pledged as Collateral							282,640
Maturities of Debt Securities, at Amortized Cost:
Within One Year	34,163		—		—		34,163
From 1 - 5 Years	88,866		36,649		—		125,515
From 5 - 10 Years	63,394		75,903		—		139,297
Over 10 Years	2,049		—		1,000		3,049
Maturities of Debt Securities, at Fair Value:
Within One Year	34,236		—		—		34,236
From 1 - 5 Years	91,148		37,133		—		128,281
From 5 - 10 Years	65,728		77,181		—		142,909
Over 10 Years	2,140		—		1,000		3,140
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	$	2,143	$	4,581	$	—	$	6,724
12 Months or Longer	16,033		—		—		16,033
Total	$	18,176	$	4,581	$	—	$	22,757
Number of Securities in a   Continuous Loss Position	74		1		—		75
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$	17	$	8	$	—	$	25
12 Months or Longer	138		—		—		138
Total	$	155	$	8	$	—	$	163
December 31, 2013
Held-To-Maturity Securities,   at Amortized Cost	$	198,206	$	100,055	$	1,000	$	299,261
Held-To-Maturity Securities,   at Fair Value	202,390		98,915		1,000		302,305
Gross Unrealized Gains	4,762		24		—		4,786
Gross Unrealized Losses	578		1,164		—		1,742
Held-To-Maturity Securities,   Pledged as Collateral							298,261

Held-To-Maturity Securities
	State and Municipal Obligations		Mortgage- Backed Securities - Residential		Corporate and Other Debt Securities		Total Held-To Maturity Securities
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	$	23,633	$	85,339	$	—	$	108,972
12 Months or Longer	5,111		—		—		5,111
Total	$	28,744	$	85,339	$	—	$	114,083
Number of Securities in a   Continuous Loss Position	101		36		—		137
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$	519	$	1,164	$	—	$	1,683
12 Months or Longer	59		—		—		59
Total	$	578	$	1,164	$	—	$	1,742

Schedule of Cost Method Investments [Table Text Block]

Schedule of Federal Reserve Bank and Federal Home Loan Bank Stock

Federal Reserve Bank and Federal Home Loan Bank Stock are carried at cost.

	December 31,
	2014		2013
Federal Reserve Bank Stock	$	1,048	$	1,035
Federal Home Loan Bank Stock	3,803		5,246
Total Federal Reserve Bank and Federal Home Loan Bank Stock	$	4,851	$	6,281