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Investment securities (Tables)

12 Months Ended

Dec. 31, 2015

Amortized Cost and Fair Value of Investment Securities Aggregated by Investment Category

					Gross			Gross
		Amortized			Unrealized			Unrealized			Fair
December 31, 2015		Cost			Gains			Losses			Value
Available-for-sale:
U.S. Treasury securities		$	10,030						31		$	9,999
U.S. Government-sponsored enterprises			68,831		$	291		$	62			69,060
State and municipals:
Taxable			15,842			735			32			16,545
Tax-exempt			121,099			3,915			90			124,924
Mortgage-backed securities:
U.S. Government agencies			31,612			73			117			31,568
U.S. Government-sponsored enterprises			32,928			119			208			32,839
Total		$	280,342		$	5,133		$	540		$	284,935
Held-to-maturity:
Tax-exempt state and municipals		$	6,865		$	186		$	16		$	7,035
Mortgage-backed securities:
U.S. Government agencies			84			1						85
U.S. Government-sponsored enterprises			5,160			326						5,486
Total		$	12,109		$	513		$	16		$	12,606

					Gross			Gross
		Amortized			Unrealized			Unrealized			Fair
December 31, 2014		Cost			Gains			Losses			Value
Available-for-sale:
U.S. Treasury securities		$	48,393		$	157					$	48,550
U.S. Government-sponsored enterprises			95,990			337		$	82			96,245
State and municipals:
Taxable			16,490			943			26			17,407
Tax-exempt			87,954			4,971			24			92,901
Mortgage-backed securities:
U.S. Government agencies			37,511			132			167			37,476
U.S. Government-sponsored enterprises			46,956			277			226			47,007
Total		$	333,294		$	6,817		$	525		$	339,586
Held-to-maturity:
Tax-exempt state and municipals		$	7,370		$	105		$	38		$	7,437
Mortgage-backed securities:
U.S. Government agencies			100			2						102
U.S. Government-sponsored enterprises			7,195			481						7,676
Total			14,665		$	588		$	38		$	15,215

Maturity Distribution of Debt Securities

		Amortized			Fair
December 31, 2015		Cost			Value
Within one year		$			$
After one but within five years
After five but within ten years
After ten years			6,865			7,035
			6,865			7,035
Mortgage-backed securities			5,244			5,571
Total		$	12,109		$	12,606

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
December 31, 2015		Value			Losses			Value			Losses			Value			Losses
U.S. Treasury securities		$	9,999		$	31		$			$			$	9,999		$	31
U.S. Government-sponsored enterprises			34,159			62									34,159			62
State and municipals:
Taxable									532			32			532			32
Tax-exempt			21,341			87			1,952			19			23,293			106
Mortgage-backed securities:
U.S. Government agencies			15,114			56			5,477			61			20,591			117
U.S. Government-sponsored enterprises			17,647			104			6,030			104			23,677			208
Total		$	98,260		$	340		$	13,991		$	216		$	112,251		$	556

		Less Than 12 Months						12 Months or More						Total
		Fair			Unrealized			Fair			Unrealized			Fair			Unrealized
December 31, 2014		Value			Losses			Value			Losses			Value			Losses
U.S. Treasury securities
U.S. Government-sponsored enterprises		$	21,228		$	33		$	7,954		$	49		$	29,182		$	82
State and municipals:
Taxable									544			26			544			26
Tax-exempt			4,702			23			2,423			39			7,125			62
Mortgage-backed securities:
U.S. Government agencies			20,148			167									20,148			167
U.S. Government-sponsored enterprises			22,870			226									22,870			226
Total		$	68,948		$	449		$	10,921		$	114		$	79,869		$	563

Available-for-Sale Securities [Member]

Maturity Distribution of Debt Securities

		Fair
December 31, 2015		Value
Within one year		$	27,675
After one but within five years			96,309
After five but within ten years			49,563
After ten years			46,981
			220,528
Mortgage-backed securities			64,407
Total		$	284,935

X

- Definition

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

+ References

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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=27724398&loc=d3e27290-111563

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