Stockholders' Equity (Secondary Public Offerings) (Details) - Shelf Registration Statement [Member] - USD ($)	1 Months Ended
Oct. 31, 2014	Dec. 31, 2015
Equity Offering [Line Items]
Proceeds from issuance or sale of equity	$ 25,000,000
Unused shelf registration		$ 22,000,000

The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585

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Period Type:	duration