Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2019

Share-based Payment Arrangement [Abstract]

Components of share-based compensation awards

The following table summarizes the components of the Corporation's share-based compensation awards recorded as an expense and the income tax benefit of such awards.

	Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018
Stock and ESPP Options
Pre-tax compensation expense	$	25		$	24		$	36		$	49
Income tax benefit	(41		)	(80		)	(57		)	(138		)
Stock and ESPP option expense, net of income taxes	$	(16	)	$	(56	)	$	(21	)	$	(89	)
Restricted Stock Awards
Pre-tax compensation expense	$	819		$	752		$	1,789		$	1,604
Income tax benefit	(186		)	(181		)	(726		)	(747		)
Restricted stock awards expense, net of income taxes	$	633		$	571		$	1,063		$	857
Total Share-Based Compensation
Pre-tax compensation expense	$	844		$	776		$	1,825		$	1,653
Income tax benefit	(227		)	(261		)	(783		)	(885		)
Total share-based compensation expense, net of income taxes	$	617		$	515		$	1,042		$	768

Stock option activity under stock option plans

Stock option activity under the Corporation's stock option plans as of June 30, 2019 and changes during the six months ended June 30, 2019, were as follows:

	Number of Shares		Weighted-Average Exercise Price		Weighted Average Remaining Contractual Term (in Years)	Aggregate Intrinsic Value
Outstanding at January 1, 2019	76,300		$	12.40
Exercised	(11,200	)	$	9.34
Cancelled	—		$	—
Outstanding June 30, 2019	65,100		$	12.92	2.77	$	1,625,958
Vested and Expected to Vest at June 30, 2019	65,100		$	12.92	2.77	$	1,625,958
Exercisable at June 30, 2019	65,100		$	12.92	2.77	$	1,625,958

Unvested RSAs outstanding

The following table summarizes information on unvested RSAs outstanding as of June 30, 2019:

	Number of Shares		Weighted-Average Grant Date Fair Value
Unvested RSAs at January 1, 2019	344,362		$	36.80
Granted	7,034		$	37.78
Vested	(108,638	)	$	23.48
Forfeited	(1,900	)	$	40.54
Unvested RSAs at June 30, 2019	240,858		$	42.81