Basis of Presentation and Significant Accounting Policies (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2015

Dec. 31, 2014

Accounting Policies [Abstract]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

The following table summarizes potentially dilutive shares outstanding as of June 30, 2015, which were excluded from the calculation due to being anti-dilutive:

	2015
Common stock purchase warrants		1,782
Stock options		748
Restricted shares of common stock		—

The following table summarizes potentially dilutive shares outstanding as of December 31, 2014, which were excluded from the calculation due to being anti-dilutive:

	2014		2013
Common stock purchase warrants		1,782		22
Stock options		1,245		750
Restricted shares of common stock		100		51