Stock-Based Compensation

12 Months Ended

Dec. 31, 2020

Share-based Payment Arrangement [Abstract]

Stock-Based CompensationOn July 24, 2014, the Company's shareholders approved the Equity Plan that provides for the issuance of 1,500,000 shares of the Company's common stock in the form of various types of stock-based compensation. The Company issues new shares of common stock to satisfy share option exercises and restricted stock award vests. As of December 31, 2020, shares remaining available for future issuance under the Equity Plan totaled 646,503.

(a) Stock Option Awards

Stock options generally vested ratably over three years and expired five years after they become exercisable or vested ratably over four years and expired ten years from date of grant. For the years ended December 31, 2020, 2019 and 2018, the Company did not recognize any compensation expense or related tax benefit related to stock options as all of the compensation expense related to the outstanding stock options had been previously recognized. The intrinsic value from options exercised during the years ended December 31, 2020, 2019 and 2018 was $61,000, $60,000 and $202,000, respectively. The cash proceeds from options exercised during the years ended December 31, 2020, 2019 and 2018 were $122,000, $58,000 and $132,000, respectively.

The following table summarizes the stock option activity during the periods indicated:


	Shares	Weighted-Average Exercise Price
Outstanding at December 31, 2017	23,231	$	14.21
Exercised	(9,842)	13.45
Forfeited or expired	(831)	14.77
Outstanding at December 31, 2018	12,558	14.77
Exercised	(3,901)	14.77

Outstanding at December 31, 2019	8,657	14.77
Exercised	(8,248)	14.77
Forfeited or expired	(409)	14.77
Outstanding, vested and expected to vest and exercisable at December 31, 2020	—	$	—

(b) Restricted Stock Awards

Restricted stock awards granted generally had a four-year cliff vesting or four-year ratable vesting schedule. For the years ended December 31, 2020, 2019 and 2018, the Company recognized compensation expense related to restricted stock awards of $76,000, $440,000 and $907,000, respectively, and a related tax benefit of $17,000, $93,000 and $191,000, respectively. The vesting date fair value of restricted stock awards that vested during the years ended December 31, 2020, 2019 and 2018 was $442,000, $1.3 million and $2.2 million, respectively.

The following table summarizes the restricted stock award activity for the periods indicated


	Shares	Weighted-Average Grant Date Fair Value
Nonvested at December 31, 2017	137,399	$	17.00

Vested	(67,877)	16.74
Forfeited	(3,489)	16.92
Nonvested at December 31, 2018	66,033	17.28

Vested	(43,148)	17.07
Forfeited	(2,178)	18.32
Nonvested at December 31, 2019	20,707	17.59

Vested	(20,707)	17.59

Nonvested at December 31, 2020	—	$	—

Restricted stock units generally vest ratably over three years and are subject to service conditions in accordance with each award agreement.

A category of restricted stock units called performance-based restricted stock units have a three-year cliff vesting schedule, participate in dividends and are additionally subject to performance-based vesting. The number of shares actually delivered pursuant to each performance-based restricted stock unit award agreement depends on the performance of the Company's Total Shareholder Return and Return on Average Assets over the performance period in relation to the performance of the common stock of a predetermined peer group. The conditions of the grants allow for an actual payout ranging between no payout and 150% of target. The payout level is calculated based on actual performance achieved during the performance period compared to a defined peer group. The fair value of each performance-based restricted stock unit was determined using a Monte Carlo simulation and will be recognized over the vesting period. The Monte-Carlo simulation model uses the same input assumptions as the Black-Scholes model; however, it also further incorporates into the fair value

determination the possibility that the market condition may not be satisfied. Compensation costs related to these awards are recognized regardless of whether the market condition is satisfied, provided that the requisite service has been provided.

The Company used the following assumptions to estimate the fair value of performance-based restricted share units granted for the periods indicated:


	Year Ended December 31,
	2020		2019		2018
Shares issued	15,200		14,396		11,099
Expected Term in Years	2.8		2.8		2.8
Weighted-Average Risk Free Interest Rate	1.14	%	2.47	%	2.39	%
Weighted Average Fair Value	23.50		30.06		27.69
Correlation coefficient	ABA NASDAQ Community Bank Index		ABA NASDAQ Community Bank Index		ABA NASDAQ Community Bank Index
Range of peer company volatilities	18.1%-107.6%		19.9%-75.4%		19.0%-51.4%
Range of peer company correlation coefficients	16.1%-90.2%		34.5%-90.7%		28.2%-94.3%
Heritage volatility	23.2	%	23.9	%	22.3	%
Heritage correlation coefficient	80.5	%	79.9	%	76.4	%

Expected volatilities in the model were estimated using a historical period consistent with the performance period of approximately three years. The risk-free interest rate was based on the United States Treasury rate for a term commensurate with the expected life of the grant.

For the years ended December 31, 2020, 2019 and 2018, the Company recognized compensation expense related to restricted stock units of $3.5 million, $2.8 million, and $1.8 million respectively, and a related tax benefit of $757,000, $589,000, and $387,000, respectively. As of December 31, 2020, the total unrecognized compensation expense related to non-vested restricted stock units was $5.2 million and the related weighted-average period over which the compensation expense is expected to be recognized is approximately 2.3 years. The vesting date fair value of the restricted stock units that vested during the year ended December 31, 2020, 2019 and 2018 was $2.4 million, $2.0 million and $1.0 million respectively.

The following table summarizes the unit activity for the periods indicated:


	Units	Weighted-Average Grant Date Fair Value
Nonvested at December 31, 2017	90,544	$	25.31
Granted	125,633	30.62
Vested	(32,375)	25.44
Forfeited	(4,617)	27.82
Nonvested at December 31, 2018	179,185	28.94
Granted	126,598	31.89
Vested	(64,173)	29.25
Forfeited	(8,070)	30.25
Nonvested at December 31, 2019	233,540	30.41
Granted	200,972	23.61
Vested	(109,853)	29.21
Forfeited	(8,543)	28.07
Nonvested at December 31, 2020	316,116	$	26.57