Investment Securities (Tables)

12 Months Ended

Dec. 31, 2017

Investments, Debt and Equity Securities [Abstract]

Available-for-sale Securities

The following table is the schedule of Available-For-Sale Securities at December 31, 2017 and 2016:

Available-For-Sale Securities
	U.S. Government & Agency Obligations		State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Mutual Funds and Equity Securities		Total Available- For-Sale Securities
December 31, 2017
Available-For-Sale Securities,   at Amortized Cost	$	60,328	$	10,351	$	229,077	$	1,000	$	1,120	$	301,876
Available-For-Sale Securities,   at Fair Value	59,894		10,349		227,596		800		1,561		300,200
Gross Unrealized Gains	—		9		485		—		441		935
Gross Unrealized Losses	434		11		1,966		200		—		2,611
Available-For-Sale Securities,   Pledged as Collateral,   at Fair Value											183,052
Maturities of Debt Securities, at Amortized Cost:
Within One Year	13,025		8,902		2,619		—				24,546
From 1 - 5 Years	47,303		679		103,078		—				151,060
From 5 - 10 Years	—		250		75,570		—				75,820
Over 10 Years	—		520		47,810		1,000				49,330
Maturities of Debt Securities, at Fair Value:
Within One Year	12,956		8,896		2,642		—				24,494
From 1 - 5 Years	46,938		683		102,126		—				149,747
From 5 - 10 Years	—		250		75,044		—				75,294
Over 10 Years	—		520		47,784		800				49,104
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	$	20,348	$	8,498	$	70,930	$	—	$	—	$	99,776
12 Months or Longer	39,546		—		80,759		800		—		121,105
Total	$	59,894	$	8,498	$	151,689	$	800	$	—	$	220,881
Number of Securities in a   Continuous Loss Position	14		36		55		1		—		106
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$	172	$	11	$	363	$	—	$	—	$	546
12 Months or Longer	262		—		1,603		200		—		2,065
Total	$	434	$	11	$	1,966	$	200	$	—	$	2,611
Disaggregated Details:
US Treasury Obligations,   at Amortized Cost	$	—
US Treasury Obligations, at Fair Value	—
US Agency Obligations, at Amortized Cost	60,328
US Agency Obligations, at Fair Value	59,894
US Government Agency   Securities, at Amortized Cost					$	40,832
US Government Agency   Securities, at Fair Value					40,832
Government Sponsored Entity   Securities, at Amortized Cost					188,245
Government Sponsored Entity Securities, at Fair Value					186,764

Available-For-Sale Securities
	U.S. Government & Agency Obligations		State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Mutual Funds and Equity Securities		Total Available- For-Sale Securities
December 31, 2016
Available-For-Sale Securities,   at Amortized Cost	$	147,110	$	27,684	$	168,189	$	3,512	$	1,120	$	347,615
Available-For-Sale Securities,   at Fair Value	147,377		27,690		167,239		3,308		1,382		346,996
Gross Unrealized Gains	304		24		986		—		262		1,576
Gross Unrealized Losses	37		18		1,936		204		—		2,195
Available-For-Sale Securities,   Pledged as Collateral,   at Fair Value											262,852
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	$	70,605	$	12,165	$	126,825	$	500	$	—	$	210,095
12 Months or Longer	—		7,377		—		2,809		—		10,186
Total	$	70,605	$	19,542	$	126,825	$	3,309	$	—	$	220,281
Number of Securities in a   Continuous Loss Position	19		84		40		4		—		147
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$	37	$	13	$	1,936	$	1	$	—	$	1,987
12 Months or Longer	—		5		—		203		—		208
Total	$	37	$	18	$	1,936	$	204	$	—	$	2,195
Disaggregated Details:
US Treasury Obligations, at Amortized Cost	$	54,701
US Treasury Obligations, at Fair Value	54,706
US Agency Obligations, at Amortized Cost	92,409
US Agency Obligations, at Fair Value	92,671
US Government Agency Securities, at Amortized Cost					$	3,694
US Government Agency Securities, at Fair Value					3,724
Government Sponsored Entity Securities, at Amortized Cost					164,495
Government Sponsored Entity Securities, at Fair Value					163,515

Held-to-maturity Securities

The following table is the schedule of Held-To-Maturity Securities at December 31, 2017 and 2016:

Held-To-Maturity Securities
	State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Total Held-To Maturity Securities
December 31, 2017
Held-To-Maturity Securities,   at Amortized Cost	$	275,530	$	60,377	$	—	$	335,907
Held-To-Maturity Securities,   at Fair Value	275,353		60,548		—		335,901
Gross Unrealized Gains	1,691		269		—		1,960
Gross Unrealized Losses	1,868		98		—		1,966
Held-To-Maturity Securities,   Pledged as Collateral, at Fair Value							318,622
Maturities of Debt Securities, at Amortized Cost:
Within One Year	38,422		—		—		38,422
From 1 - 5 Years	80,789		54,212		—		135,001
From 5 - 10 Years	152,918		6,165		—		159,083
Over 10 Years	3,401		—		—		3,401
Maturities of Debt Securities, at Fair Value:
Within One Year	38,506		—		—		38,506
From 1 - 5 Years	81,499		54,370		—		135,869
From 5 - 10 Years	151,904		6,178		—		158,082
Over 10 Years	3,444		—		—		3,444
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	$	55,648	$	13,764	$	—	$	69,412
12 Months or Longer	65,152		3,257		—		68,409
Total	$	120,800	$	17,021	$	—	$	137,821
Number of Securities in a   Continuous Loss Position	352		14		—		366
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$	442	$	56	$	—	$	498
12 Months or Longer	1,425		43		—		1,468
Total	$	1,867	$	99	$	—	$	1,966
Disaggregated Details:
US Government Agency Securities, at Amortized Cost			$	2,680
US Government Agency Securities, at Fair Value			2,661
Government Sponsored Entity Securities, at Amortized Cost			57,697
Government Sponsored Entity Securities, at Fair Value			57,887

Held-To-Maturity Securities
	State and Municipal Obligations		Mortgage- Backed Securities		Corporate and Other Debt Securities		Total Held-To Maturity Securities
December 31, 2016
Held-To-Maturity Securities,   at Amortized Cost	$	268,892	$	75,535	$	1,000	$	345,427
Held-To-Maturity Securities,   at Fair Value	267,127		75,624		1,000		343,751
Gross Unrealized Gains	2,058		258		—		2,316
Gross Unrealized Losses	3,823		169		—		3,992
Held-To-Maturity Securities,   Pledged as Collateral, at Fair Value							321,202
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	$	107,255	$	13,306	$	—	$	120,561
12 Months or Longer	12,363		—		—		12,363
Total	$	119,618	$	13,306	$	—	$	132,924
Number of Securities in a   Continuous Loss Position	347		13		—		360
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$	3,129	$	169	$	—	$	3,298
12 Months or Longer	694		—		—		694
Total	$	3,823	$	169	$	—	$	3,992
Disaggregated Details:
US Government Agency Securities, at Amortized Cost			$	3,206
US Government Agency Securities, at Fair Value			3,222
Government Sponsored Entity Securities, at Amortized Cost			72,329
Government Sponsored Entity Securities, at Fair Value			72,402

Schedule of Cost Method Investments

Schedule of Federal Reserve Bank and Federal Home Loan Bank Stock (at cost)

	December 31,
	2017		2016
Federal Reserve Bank Stock	$	1,120	$	1,071
Federal Home Loan Bank Stock	8,829		9,841
Total Federal Reserve Bank and Federal Home Loan Bank Stock	$	9,949	$	10,912