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Investment securities (Tables)

6 Months Ended

Jun. 30, 2017

Schedule of amortized cost and fair value of investment securities aggregated by investment category

					Gross			Gross
		Amortized			Unrealized			Unrealized			Fair
June 30, 2017		Cost			Gains			Losses			Value
Available-for-sale:
U.S. Treasury securities		$	20,047		$	56		$	23		$	20,080
U.S. Government-sponsored enterprises			81,495			96			847			80,744
State and municipals:
Taxable			14,629			667			1			15,295
Tax-exempt			102,737			2,191			59			104,869
Mortgage-backed securities:
U.S. Government agencies			17,576			31			29			17,578
U.S. Government-sponsored enterprises			18,280			39			111			18,208
Total		$	254,764		$	3,080		$	1,070		$	256,774
Held-to-maturity:
Tax-exempt state and municipals		$	6,860		$	163		$	3		$	7,020
Mortgage-backed securities:
U.S. Government agencies			61									61
U.S. Government-sponsored enterprises			2,947			193						3,140
Total		$	9,868		$	356		$	3		$	10,221

					Gross			Gross
		Amortized			Unrealized			Unrealized			Fair
December 31, 2016		Cost			Gains			Losses			Value
Available-for-sale:
U.S. Treasury securities		$	7,570					$	132		$	7,438
U.S. Government-sponsored enterprises			82,314		$	79			1,480			80,913
State and municipals:
Taxable			14,698			566			39			15,225
Tax-exempt			110,931			2,309			640			112,600
Mortgage-backed securities:
U.S. Government agencies			21,041			48			47			21,042
U.S. Government-sponsored enterprises			22,303			48			159			22,192
Total		$	258,857		$	3,050		$	2,497		$	259,410
Held-to-maturity:
Tax-exempt state and municipals		$	6,862		$	72		$	67		$	6,867
Mortgage-backed securities:
U.S. Government agencies			68			1						69
U.S. Government-sponsored enterprises			3,587			191						3,778
Total		$	10,517		$	264		$	67		$	10,714

Schedule of fair value and unrealized losses of investment securities in continuous unrealized loss position

		Less Than 12 Months						12 Months or More						Total
		Fair			Unrealized			Fair			Unrealized			Fair			Unrealized
June 30, 2017		Value			Losses			Value			Losses			Value			Losses
U.S. Treasury securities		$	2,501		$	23								$	2,501		$	23
U.S. Government-sponsored enterprises			65,845			823		$	1,067		$	24			66,912			847
State and municipals:
Taxable			554			1									554			1
Tax-exempt			15,898			62									15,898			62
Mortgage-backed securities:
U.S. Government agencies			2,848			8			3,503			21			6,351			29
U.S. Government-sponsored enterprises			11,218			50			2,327			61			13,545			111
Total		$	98,864		$	967		$	6,897		$	106		$	105,761		$	1,073

		Less Than 12 Months						12 Months or More						Total
		Fair			Unrealized			Fair			Unrealized			Fair			Unrealized
December 31, 2016		Value			Losses			Value			Losses			Value			Losses
U.S. Treasury securities		$	7,438		$	132								$	7,438		$	132
U.S. Government-sponsored enterprises			59,460			1,480									59,460			1,480
State and municipals:
Taxable			1,035			39									1,035			39
Tax-exempt			55,166			707		$	226						55,392			707
Mortgage-backed securities:
U.S. Government agencies			5,917			27			1,496		$	20			7,413			47
U.S. Government-sponsored enterprises			16,412			85			2,712			74			19,124			159
Total		$	145,428		$	2,470		$	4,434		$	94		$	149,862		$	2,564

Available-for-Sale Securities

Schedule of maturity distribution of fair value

		Fair
June 30, 2017		Value
Within one year		$	33,157
After one but within five years			127,433
After five but within ten years			45,799
After ten years			14,599
			220,988
Mortgage-backed securities			35,786
Total		$	256,774

Held-to-maturity Securities

Schedule of maturity distribution of fair value

		Amortized			Fair
June 30, 2017		Cost			Value
Within one year
After one but within five years
After five but within ten years
After ten years		$	6,860		$	7,020
			6,860			7,020
Mortgage-backed securities			3,008			3,201
Total		$	9,868		$	10,221

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- Definition

Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

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Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.

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- Definition

For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563

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