Business and Presentation (Tables)

12 Months Ended

Dec. 31, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Exit Activities [Table Text Block]

The discontinuance of this development program is considered an exit activity. As such, we recognized the following expenses in the second and third quarters of 2014:

	Quarter ended
	June 30, 2014		September 30, 2014
Severance costs	$	320,000	$	-
Loss on abandonment of lease		-		243,000
Loss on disposal of assets		-		132,000
Total	$	320,000	$	375,000

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The assumptions used in the model for the LTIP and EIP are summarized in the following table:

	2014		2013
Risk free rate	0.1-1.7	%	0.4-1.4	%
Weighted average expected years until exercise	6.3		5.9
Expected stock volatility	118-127	%	96-135	%
Dividend yield	—		—