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Stock Options and Restricted Stock Units - Schedule of Stock Options Outstanding (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Number outstanding 15,000    
Weighted average exercise price $ 2.17 $ 0.67 $ 0.67
Range One [Member]      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Exercise price $ 2.13    
Number outstanding 10,000    
Weighted average remaining contractual life (years) [1] 0 years    
Weighted average exercise price $ 2.13    
Aggregate Intrinsic Value    
Range Two [Member]      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Exercise price $ 2.25    
Number outstanding 5,000    
Weighted average remaining contractual life (years) [1] 0 years    
Weighted average exercise price $ 2.25    
Aggregate Intrinsic Value    
[1] Options currently issued pursuant to the Company's 2004 Employee Stock Option Plans have no expiration date.