Basis of Presentation, Liquidity and Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2017

Basis of Presentation, Liquidity and Summary of Significant Accounting Policies [Abstract]

Antidilutive securities excluded from computation of earnings per share

The following common share equivalents were excluded from the computation of diluted net income (loss) per common share for the periods presented because including them would have been antidilutive (in thousands):

	Three Months Ended March 31, (unaudited)
	2017		2016
Stock options		4,701		5,454
Warrants		9,395		9,395
Treasury stock		--		4,473