Significant Accounting Policies - Secondary Offering (Details) - 6 months ended Jun. 30, 2014 - USD ($)	Total
January 2014 [Member]
Secondary Offering Period	January 23, 2014
Stock Issued During Secondary Offering	1,800,000
Underwriters Overallotment Period	January 29, 2014
Underwriters Overallotment Shares	270,000
Proceeds From Secondary Offering	$ 24,200,000
March 2014 [Member]
Secondary Offering Period	March 24, 2014
Stock Issued During Secondary Offering	3,200,000
Underwriters Overallotment Period	April 11, 2014
Underwriters Overallotment Shares	480,000
Proceeds From Secondary Offering	$ 44,000,000