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Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2019

Share-based Payment Arrangement [Abstract]

Summary of Restricted Stock Activity

A summary of all restricted stock/units activity as of December 31, 2017, 2018 and 2019 and changes during the years then ended are presented below.

			Number  of Shares						Weighted Average Exercise Price						Weighted Average Remaining Contractual Life (years)						Aggregate Intrinsic Value (in thousands)
Outstanding, December 31, 2016			139,451						$	21.34					9.13						$	4,483
Granted			126,432						27.06						—						3,421
Vested			(81,494)						21.20						—						2,361
Canceled/Forfeited			—						—						—						—
Outstanding, December 31, 2017			184,389						$	25.32					8.83						$	4,831
Granted			140,988						24.55						—						3,461
Vested			(110,747)						23.97						—						2,806
Canceled/Forfeited			—						—						—						—
Outstanding, December 31, 2018			214,630						$	25.51					8.85						$	3,529
Granted			199,810						17.16						—						3,433
Vested			(134,674)						24.26						—						2,807
Canceled/Forfeited			—						—						—						—
Outstanding, December 31, 2019			279,766						$	20.15					8.77						$	3,430

Stock Options Fair Value Assumptions

The fair value of each option award is estimated on the date of grant using the Black-Scholes option valuation model that uses the assumptions noted in the following table.  The risk-free rate for periods within the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of grant.  The expected life of options granted is based on the vesting period and historical exercise and post-vesting employment termination behavior for similar grants.  We use historical data to estimate option exercise and employee termination within the valuation model; separate groups of employees that have similar historical exercise behavior are considered separately for valuation purposes.

Weighted average Black -Scholes fair value assumption during the year ended December 31, are as follows:									2017
Risk free rate									2.12		%
Expected life									6 years
Expected volatility									39.59		%
Expected dividend yield									—

Summary of Option Activity

A summary of all option activity as of December 31, 2017, 2018 and 2019 and changes during the years then ended are presented below:

			Number  of Shares						Weighted Average Grant Date Fair Value						Weighted Average Remaining Contractual Life (years)						Aggregate Intrinsic Value (in thousands)
Outstanding, December 31, 2016			350,186						$	19.45					4.25						$	4,453
Granted			32,750						28.15						—						—
Exercised			(55,666)						20.12						—						446
Outstanding, December 31, 2017			327,270						$	20.21					4.28						$	2,255
Granted			—						—						—						—
Exercised			(38,250)						17.19						—						216
Canceled/Forfeited			(5,534)						24.02						—						—
Outstanding, December 31, 2018			283,686						$	20.46					3.58						$	434
Granted			—						—						—						—
Exercised			(56,352)						8.97						—						474
Canceled/Forfeited			(8,000)						21.60						—						—
Expired			(11,000)						17.74						—						—
Outstanding, December 31, 2019			208,334						$	23.67					3.66						$	—
Exercisable, December 31, 2019			197,901						$	23.43					3.48						$	—

Summary of Stock Options Outstanding

The following table summarizes information about our stock options outstanding at December 31, 2019:

Range of Exercise Prices						Options Outstanding																														Options Exercisable
									Shares						Weighted Average Remaining Contractual Life (years)						Weighted Average Exercise Price						Shares						Weighted Average Exercise Price
$0.01-15.70						8,500						2.07						$	14.89					8,500						$	14.89
$15.71-17.81						26,000						0.74						17.40						26,000						17.40
$17.82-20.48						50,500						1.34						19.43						50,500						19.43
$20.49-33.36						123,334						5.34						27.33						112,901						27.26
						208,334						3.66						$	23.67					197,901						$	23.43

Summary of the Status of Unvested Stock Options

The summary of the status of our unvested stock options as of December 31, 2019 and changes during the year then ended is presented below.

Unvested stock options:			Shares						Weighted Average Grant Date Fair Value
Unvested at December 31, 2018			20,865						$	11.93
Granted			—						—
Vested			(10,432)						11.93
Canceled/Forfeited			—						—
Unvested at December 31, 2019			10,433						$	11.93

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Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

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