Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2017

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Dilutive and Antidilutive Options

The dilutive and antidilutive options are shown separately in the table below.

	Three Months Ended				Nine Months Ended
	September 30				September 30
	2017		2016		2017		2016
Additional shares		1,035,000		738,500		1,021,000		679,400
Antidilutive options		599,400		1,099,600		695,900		1,943,500