Note 11 - Net Income (Loss) Attributable to Controlling Interests Per Common Share - Summary of Earning Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Net income (loss) attributable to controlling interests		$ 5,713	$ (4,670)
Basic (including unvested share-based payment awards) (1) (in shares)	[1]	14,355	13,899
Effect of dilutive stock compensation arrangements (2) (in shares)	[2]	362
Diluted (including unvested share-based payment awards) (1) (in shares)	[1]	14,717	13,899
Net income (loss) attributable to controlling interests per common share—basic (in dollars per share)		$ 0.40	$ (0.34)
Net income (loss) attributable to controlling interests per common share—diluted (in dollars per share)		$ 0.39	$ (0.34)

[1] Shares related to unvested share-based payment awards included in our basic and diluted share counts were 397,566 for the three months ended March 31, 2019, compared to 184,196 for the three months ended March 31, 2018.

[2] The effect of dilutive stock compensation arrangements is shown only for informational purposes where we are in a net loss position. In such situations, the effect of including outstanding options and restricted stock would be anti-dilutive, and they are thus excluded from all loss period calculations.