Stockholders' Equity and Non-controlling Interests - Summary of the non-vested Restricted Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	May 03, 2017
Weighted Average Grant Date Fair Value
Shares issued	29,866,000		29,952,608
Increase (decrease) in share-based compensation	$ 0
Restricted Stock Awards
Number of Shares
Unvested at the beginning of the period (in shares)	345,000
Granted (in shares)	139,000
Vested (in shares)	(163,000)
Unvested at the end of the period (in shares)	321,000		345,000
Weighted Average Grant Date Fair Value
Unvested at the beginning of the period (in dollars per share)	$ 7.42
Granted (in dollars per share)	6.23
Vested (in dollars per share)	8.22
Unvested at the end of the period (in dollars per share)	$ 6.49		$ 7.42
Share-based compensation expense	$ 200	$ 400
Total unrecognized compensation costs related to non-vested stock awards	$ 2,000		$ 1,400
Weighted average period over which unrecognized compensation costs is expected to be recognized	2 years 3 months 18 days
Restricted Stock Awards | Second Amended Plan
Shareholders' Equity
Number of shares available for future grant	200,000
Weighted Average Grant Date Fair Value
Maximum shares of common stock to be issued				1,300,000
Number of shares available for future grant	200,000