Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Summary of Warrants Outstanding (Details)

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Stockholders' Equity - Summary of Warrants Outstanding (Details) - Warrants [Member] - $ / shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Number of Warrants Beginning Balance 2,920,000 2,920,000
Number of Warrants Granted
Number of Warrants Exercised
Number of Warrants Expired 220,000
Number of Warrants Ending Balance 2,700,000 2,920,000
Weighted Average Exercise Price Beginning Balance $ 2.62 $ 2.62
Weighted Average Exercise Price Granted
Weighted Average Exercise Price Exercised
Weighted Average Exercise Price Expired 2.00
Weighted Average Exercise Price Ending Balance $ 2.83 $ 2.62