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Note 21 - Earnings Per Share (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement Line Items [Line Items]
Profit (loss), attributable to owners of parent after employee trust adjustment	$ 9,174	$ 8,288	$ 4,679
Weighted average number of ordinary shares outstanding	10,607,882	10,457,242	10,419,017
Adjusted weighted average number of ordinary shares outstanding	10,617,504	10,480,691	10,440,651
Antidilutive options excluded from computation of earnings per share, amount	18,378	68,795	426,550
Options out of the money [member]
Statement Line Items [Line Items]
Antidilutive options excluded from computation of earnings per share, amount	5,000	18,000	386,184

X

- Definition

Number of options that could potentially dilute basic earnings per share in the future that were not included in the computation of diluted earnings per share because to do so would increase or decrease earnings per share for the periods presented.

+ References

No definition available.

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X

- Definition

The profit (loss) attributable to owners of the parent after the employee trust adjustment.

+ References

No definition available.

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X

- References

No definition available.

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X

- Definition

The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 33
-IssueDate 2017-01-01
-Paragraph 70
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=33&date=2017-03-01&anchor=para_70_b&doctype=Standard
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- Definition

The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 33
-IssueDate 2017-01-01
-Paragraph 70
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=33&date=2017-03-01&anchor=para_70_b&doctype=Standard
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