Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2019

Share-based Payment Arrangement [Abstract]

Share-based Compensation, Stock Options, Activity

The following table provides information about options outstanding for the six months ended June 30, 2019:

	Shares		Weighted Average Exercise Price		Weighted Average Grant Date Fair Value
Options outstanding, March 31, 2019	21,001		$	18.32	$	4.95
Forfeited	—		—		—
Expired	—		—		—
Exercised	(4,475	)	18.27		4.42
Options outstanding, June 30, 2019	16,526		18.33		5.09

	Shares		Weighted Average Exercise Price		Weighted Average Grant Date Fair Value
Options outstanding, December 31, 2018	50,601		$	18.28	$	4.68
Forfeited	—		—		—
Expired	—		—		—
Exercised	(34,075	)	18.25		4.48
Options outstanding, June 30, 2019	16,526		18.33		5.09

Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value

Proceeds, related tax benefits realized from options exercised and intrinsic value of options exercised were as follows for the periods presented:

	Three Months Ended June 30,				Six Months Ended June 30,
(dollars in thousands)	2019		2018		2019		2018
Proceeds from exercise of stock options	$	82	$	115	$	622	$	1,107
Related tax benefit recognized	18		21		155		231
Net proceeds of options exercised	$	100	$	136	$	777	$	1,338
Intrinsic value of options exercised	$	86	$	99	$	738	$	1,098

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable

The following table provides information about options outstanding and exercisable at June 30, 2019:

(dollars in thousands, except share data and exercise price)	Outstanding		Exercisable
Number of shares	16,526		16,526
Weighted average exercise price	$	18.33	$	18.33
Aggregate intrinsic value	$	314	$	314
Weighted average remaining contractual term in years	0.3		0.3

Schedule of Nonvested Restricted Stock Units Activity

The following table details the RSUs for the three and six months ended June 30, 2019:

	Three Months Ended June 30, 2019				Six Months Ended June 30, 2019
	Number of Shares		Weighted Average Grant Date Fair Value		Number of Shares		Weighted Average Grant Date Fair Value
Beginning balance	107,635		$	38.14	76,746		$	39.71
Granted	30,618		38.26		67,308		36.34
Vested	(834	)	25.65		(3,134	)	30.07
Forfeited	(1,928	)	36.70		(5,429	)	39.56
Ending balance	135,491		38.27		135,491		38.27

Schedule of Nonvested Performance-based Units Activity

The following table details the PSUs for the three and six months ended June 30, 2019:

	Three Months Ended June 30, 2019				Six Months Ended June 30, 2019
	Number of Shares		Weighted Average Grant Date Fair Value		Number of Shares		Weighted Average Grant Date Fair Value
Beginning balance	159,797		$	35.58	121,656		$	36.82
Granted	22,714		36.93		69,109		34.29
Vested	—		—		—		—
Forfeited	(2,618	)	38.17		(10,872	)	39.02
Ending balance	179,893		35.72		179,893		35.72