Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Preferred Stock)	May 16, 2016 USD ($) $ / shares shares
Series C Convertible Preferred Stock [Abstract]
Convertible Preferred Stock, Shares Issued upon Conversion	246.427
Common Shares Issued, Conversion Of Preferred Stock	1,355,319
Series C Convertible Preferred Stock [Member]
Series C Convertible Preferred Stock [Abstract]
Preferred Stock, Liquidation Preference, Value | $	$ 5,000
Preferred stock, conversion price per share | $ / shares	$ 20.29