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Note 8 - Earnings Per Share - Computation of Earnings Per Share Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019		Mar. 31, 2018
Net income attributable to Common shareholders	$ 323		$ 1,065
Weighted average shares outstanding (in shares)	3,917,312		3,900,513
Basic earnings per share (in dollars per share)	$ 0.08		$ 0.27
Net income attributable to Common shareholders	$ 323		$ 1,065
Effect of potentially dilutive restricted common shares (in shares)			16,601
Weighted average diluted shares outstanding (in shares)	3,917,312	[1]	3,917,114
Diluted earnings per share (in dollars per share)	$ 0.08		$ 0.27
[1] The weighted average diluted shares outstanding did not include 448 anti-dilutive restricted common shares as of March 31, 2019.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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