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Stock Incentive Plans (Tables)
 3 Months Ended
Mar. 31, 2020
Share-based Payment Arrangement [Abstract]  
Schedule of Stock Option Activity
The following table summarizes stock option activity for the three months ended March 31, 2020.
Options Outstanding
SharesWeighted
Average
Exercise Price
Outstanding, December 31, 20194,071,333  $0.58  
Options granted—  —  
Options expired / forfeited(1,129,983) 0.66  
Outstanding, March 31, 20202,941,350  0.55  
Exercisable, March 31, 20201,991,350  $0.65  
Summary of Additional Information on Stock Options Outstanding
The following table summarizes additional information on stock options outstanding at March 31, 2020.
Options OutstandingOptions Exercisable
Range of
Exercise
Prices		Number OutstandingWeighted-
Average
Remaining Contractual Life (Years)		Weighted Average Exercise
Price		Number ExercisableWeighted Average Exercise
Price
$0.28 - $1.00
2,933,500  7.99$0.54  1,983,500  $0.64  
$1.50 - $1.80
4,050  1.77$1.70  4,050  $1.70  
$2.60 - $6.35
3,800  0.77$2.60  3,800  $2.60  
Totals2,941,350  7.97$0.55  1,991,350  $0.65