Stockholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Nov. 07, 2016	Mar. 31, 2017	Dec. 31, 2016
Class of Stock [Line Items]
Common stock shares authorized		100,000,000	100,000,000
Common stock, par value		$ 0.01	$ 0.01
Preferred stock shares authorized		50,000,000	50,000,000
Preferred stock, par value		$ 0.01	$ 0.01
Common stock shares issued		22,291,222	21,620,544
Common stock shares outstanding		22,291,222	21,620,544
Common stock shares for stock award, available for issuance		500,000
Common stock shares issued related to vesting of restricted stock awards		200,000
Common stock shares for stock award issuance		1,800,000
Common stock shares sold and issued		22,291,222	21,620,544
Net proceeds from issuances of common stock		$ 15,023
Distribution Agreement [Member]
Class of Stock [Line Items]
Common stock shares issued		600,000
Aggregate offering price	$ 50,000
Common stock shares sold and issued		600,000