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Stock-based Compensation (Tables)
 6 Months Ended
Jun. 30, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Stock Option Activity
The following table summarizes stock option activity for the six-month periods ended June 30, 2019 and 2018:
 
 
Stock
Options
 
Grant Date
Weighted-
Average
Exercise
Price
 
Weighted-
Average
Remaining
Contractual
Life (in
Years)
 
Intrinsic
Value
Outstanding at January 1, 2019
 
613,000

 
$
2.85

 
3.18

 
$
—

Granted
 
18,000

 
$
2.91

 
7.00

 
$
—

Exercised
 
(16,000
)
 
$
2.59

 
—

 
$
—

Forfeited
 
(12,000
)
 
$
3.05

 
—

 
$
—

Outstanding at June 30, 2019
 
603,000

 
$
2.86

 
2.34

 
$
57,000

Exercisable at June 30, 2019
 
477,000

 
$
2.87

 
2.22

 
$
—

 
 
 
 
 
 
 
 
 
Outstanding at January 1, 2018
 
615,000

 
$
2.87

 
3.48

 
$
—

Granted
 
16,000

 
$
2.68

 
6.96

 
$
—

Forfeited
 
(18,000
)
 
$
3.15

 
0

 
$
—

Outstanding at June 30, 2018
 
613,000

 
$
2.85

 
3.18

 
$
32,000

Exercisable at June 30, 2018
 
382,000

 
$
2.86

 
3.04

 
$
—