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Stock-based Compensation (Tables)
 9 Months Ended
Sep. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Share-based Compensation, Stock Options, Activity [Table Text Block]
The following table summarizes stock option activity for the nine-month period ended September 30, 2018:
 
 
 
Stock

Options
 
 
Grant Date

Weighted-

Average

Exercise

Price
 
 
Weighted-

Average

Remaining

Contractual

Life (in

Years)
 
 
Intrinsic

Value
 
Outstanding at January 1, 2018
 
 
615,000
 
 
$
2.87
 
 
 
3.48
 
 
$
-
 
Granted
 
 
16,000
 
 
$
2.68
 
 
 
6.96
 
 
$
-
 
Forfeited
 
 
(18,000
)
 
$
3.15
 
 
 
-
 
 
$
-
 
Outstanding at September 30, 2018
 
 
613,000
 
 
$
2.85
 
 
 
2.93
 
 
$
337,000
 
Exercisable at September 30, 2018
 
 
389,000
 
 
$
2.86
 
 
 
2.83
 
 
$
-