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Earnings (Loss) Per Share - Schedule of Antidilutive Weighted Average Shares (Details) - shares | 3 Months Ended
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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

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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