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Earnings (Loss) Per Share - Schedule of Antidilutive Weighted Average Shares (Details) - shares
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Weighted average common share equivalents 2,113,000 2,183,000
Stock Options [Member]    
Weighted average common share equivalents 320,000 390,000
Warrants [Member]    
Weighted average common share equivalents 1,000,000 1,000,000
Series A Preferred Stock [Member]    
Weighted average common share equivalents 793,000 793,000