Note 10 - Earnings Per Share - Computation of Earnings Per Share Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020		Mar. 31, 2019
Net (loss) income attributable to Common shareholders	$ (1,072)		$ 323
Weighted average shares outstanding (in shares)	3,931,388		3,917,312
Basic (loss) earnings per share (in dollars per share)	$ (0.27)		$ 0.08
Net (loss) income attributable to Common shareholders	$ (1,072)		$ 323
Effect of potentially dilutive restricted common shares (in shares)		[1]		[2]
Weighted average diluted shares outstanding (in shares)	3,931,388		3,917,312
Diluted (loss) earnings per share (in dollars per share)	$ (0.27)		$ 0.08

[1] The weighted average diluted shares outstanding does not include 10,112 anti-dilutive restricted common shares for the three months ended March 31, 2020.

[2] The weighted average diluted shares outstanding does not include 448 anti-dilutive restricted common shares for the three months ended March 31, 2019.