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Summary of Significant Accounting Policies (Details 3) - shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Average market price of common shares	3,101,000	1,834,000
Average market price of common shares including potential shares was anti-dilutive	500,000	1,175,000
Warrants [Member]
Average market price of common shares	2,240,000	1,480,000
Average market price of common shares including potential shares was anti-dilutive		480,000
Stock Options [Member]
Average market price of common shares	861,000	354,000
Average market price of common shares including potential shares was anti-dilutive	500,000	695,000
Convertible Preferred Stock [Member]
Average market price of common shares including potential shares was anti-dilutive

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Average market price of common shares.

+ References

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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

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