Note 19 - Shareholders' Equity - Additional Compensation Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Number of exercisable shares (in shares)	157,340
Restricted stock awards weighted average grant date fair value per share (in dollars per share)	$ 5.74
Employee Stock Option [Member]
Stock compensation expense	$ 24	$ 42	$ 54
Stock option awards weighted average grant date fair value per share (in dollars per share)		$ 1.33	$ 1.45
Unrecognized compensation costs related to non-vested stock option payments	$ 29	$ 55	$ 72
Number of exercisable shares (in shares)	157,000	163,000	168,000
Restricted Stock [Member]
Stock compensation expense	$ 215	$ 89	$ 6
Restricted stock awards weighted average grant date fair value per share (in dollars per share)	$ 5.74	$ 5.90
Unrecognized compensation costs related to non-vested restricted stock payments	$ 205	$ 181	$ 17

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Unrecognized cost of unvested options awarded to employees as compensation.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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