Preferred Stock (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands							1 Months Ended	3 Months Ended
	Oct. 31, 2019	Oct. 25, 2019	Oct. 06, 2017	Sep. 29, 2017	Jul. 15, 2014	May 12, 2014	Apr. 30, 2014	Dec. 31, 2017	Mar. 31, 2020	Mar. 30, 2020	Dec. 31, 2019
Schedule of Capitalization, Equity [Line Items]
Common stock, par value									$ 0.01		$ 0.01
Private Placement [Member]
Schedule of Capitalization, Equity [Line Items]
Aggregate offering price		$ 25,000
Series B Preferred Stock [Member]
Schedule of Capitalization, Equity [Line Items]
Issuance of preferred stock									0		0
Aggregate value
Share conversion, original shares converted			480,000
Stock conversion, estimated preferred stock dividends eliminated quarterly								$ 188
Stock conversion, estimated preferred stock dividends eliminated annually								$ 750
Preferred stock, par value									$ 0.01		$ 0.01
Series B Preferred Stock [Member] | Private Placement [Member]
Schedule of Capitalization, Equity [Line Items]
Issuance of preferred stock					480,000	480,000	480,000		480,000
Preferred stock rate							6.25%
Price per share							$ 25.00
Aggregate value					$ 12,000	$ 12,000
Placement fees					482	482
Other offering expenses					149	149
Net proceeds from issuance of Series B preferred stock					$ 11,369	$ 11,369
Series C Preferred Stock [Member]
Schedule of Capitalization, Equity [Line Items]
Issuance of preferred stock									12,607		12,337
Aggregate value
Preferred stock, par value									$ 0.01		$ 0.01
Number of outstanding shares									12,607	12,337
Series C Preferred Stock [Member] | Private Placement [Member]
Schedule of Capitalization, Equity [Line Items]
Issuance of preferred stock	12,337
Purchase price per share	$ 1,200.00
Shares upon conversion										270
Preferred stock, par value	$ 0.01
Common Stock [Member]
Schedule of Capitalization, Equity [Line Items]
Shares post-reverse-split				0.18
Number of shares exchange										27,000
Common Stock [Member] | Prior Reverse Stock Split [Member]
Schedule of Capitalization, Equity [Line Items]
Shares issued upon conversion			6,857,143
Common Stock [Member] | Post Reverse Stock Split [Member]
Schedule of Capitalization, Equity [Line Items]
Shares issued upon conversion			1,246,753
Common Stock [Member] | Private Placement [Member]
Schedule of Capitalization, Equity [Line Items]
Shares sold	849,615
Purchase price per share	$ 12.00
Nonvoting Common Stock [Member] | Private Placement [Member]
Schedule of Capitalization, Equity [Line Items]
Shares upon conversion	100
Common stock, par value	$ 0.01