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Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2018
Stock-Based Compensation [Abstract]  
Information regarding stock option plan

Information regarding our stock-based compensation plan is as follows as of and for the six months ended June 30:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2018

 

2017

 

    

 

    

 

    

Weighted-

    

 

    

 

    

 

    

Weighted-

    

 

 

 

 

 

Weighted-

 

Average

 

Aggregate

 

 

 

Weighted-

 

Average

 

Aggregate

 

 

 

 

Average

 

Remaining

 

Intrinsic

 

 

 

Average

 

Remaining

 

Intrinsic

 

 

Number

 

Exercise

 

Contractual

 

Value

 

Number

 

Exercise

 

Contractual

 

Value

 

 

of Shares

 

Price

 

Term (in years)

 

(in thousands)

 

of Shares

 

Price

 

Term (in years)

 

(in thousands)

Outstanding at beginning of period

 

434,275

 

$

5.87

 

  

 

 

  

 

339,500

 

$

5.31

 

  

 

 

  

Granted

 

6,500

 

 

7.41

 

  

 

 

  

 

 —

 

 

 —

 

  

 

 

  

Exercised

 

(24,252)

 

 

4.00

 

  

 

 

  

 

(5,025)

 

 

3.37

 

  

 

 

  

Forfeited

 

(1,750)

 

 

5.26

 

  

 

 

  

 

(15,000)

 

 

4.67

 

  

 

 

  

Outstanding at end of period

 

414,773

 

$

6.01

 

6.0

 

$

1,096

 

319,475

 

$

5.37

 

7.5

 

$

604

Exercisable at end of period

 

209,998

 

$

5.18

 

5.9

 

$

730

 

158,129

 

$

4.70

 

6.7

 

$

407

 

Stock options valuation assumptions

The followings weighted average assumptions were used to value options granted for the six months ended June 30, 2018:

 

 

 

 

 

 

    

2018

    

Expected life

 

 

5.5 years

 

Risk-free interest rate

 

 

2.67

%  

Expected volatility

 

 

32.20

%  

Expected dividend yield

 

 

 —

 

Weighted average per share fair value of options granted

 

$

2.57