Stock Options and Warrants (Tables)
|12 Months Ended|
Dec. 31, 2017
|Schedule of Stock Options Outstanding and Exercisable||
Stock options outstanding and exercisable as of December 31, 2017 were:
Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.
Reference 1: http://www.xbrl.org/2003/role/presentationRef