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Note 17 - Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		Year Ended December 31,
		2019				2018				2017
Weighted-average expected life (years)			6.25				6.25				6.25
Expected volatility rates (1)			49.45	%			52.6	%			57.4	%
Expected dividend yield			0	%			0	%			0	%
Risk-free interest rate			-0.08	%			0.18	%			0.02	%
Weighted-average exercise price (€)			3.90				2.65				2.39
Weighted-average fair value of options granted during the year (€)			1.93				1.33				1.29

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

		2019								2018								2017
		Options				Weighted average exercise price (€)				Options				Weighted average exercise price (€)				Options				Weighted average exercise price (€)
Outstanding on January 1,			1,347,600				2.61				1,207,600				2.61				1,427,438				2.94
Granted			155,000				3.90				165,000				2.65				260,000				2.39
Exercised			(143,700	)			2.16				-				-				(60,000	)			1.91
Forfeited			(85,000	)			1.94				(25,000	)			3.05				(134,750	)			3.09
Expired			-				-				-				-				(285,088	)			3.99
Outstanding on December 31,			1,273,900				2.78				1,347,600				2.61				1,207,600				2.61
Exercisable on December 31,			818,900				2.60				772,600				2.44				598,850				2.29
Share purchase options available for grant on December 31			250,428								250,428								250,428

Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

		Outstanding options																Fully vested options (1)
Exercise price (€)		Options				Weighted average remaining contractual life				Weighted average exercise price (€)				Aggregate Intrinsic Value (2) (€)				Options				Weighted average exercise price (€)				Aggregate Intrinsic Value (2)
3.90			130,000				9.3				3.90				5,954				-				-				-
3.22			485,000				6.3				3.22				352,013				363,750				3.22				264,010
2.65			145,000				8.7				2.65				187,891				36,250				2.65				46,973
2.39			189,400				7.3				2.39				294,669				94,400				2.39				146,868
2.38			42,000				0.5				2.38				65,764				42,000				2.38				65,764
1.91			282,500				3.0				1.91				575,114				282,500				1.91				575,114
1.91 to 3.90			1,273,900				7.0				2.78				1,481,405				818,900				2.60				1,098,728

Schedule of Nonvested Share Activity [Table Text Block]

		Options				Weighted average Grant-Date Fair Value (€)
Non-vested at January 1, 2019			575,000				1.47
Granted			155,000				1.93
Vested			(204,400	)			1.52
Forfeited			(70,600	)			1.58
Non-vested at December 31, 2019			455,000				1.58

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

		Year Ended December 31, 2019
		Foreign currency translation adjustments				Provision for retirement indemnities				Total
Beginning balance			(3,173	)			(577	)			(3,748	)
Other comprehensive income (loss) before reclassifications			-				-				-
Reclassified from accumulated other comprehensive loss			-				-				-
Net current-period other comprehensive income (loss)			(61	)			374				313
Ending balance			(3,234	)			(203	)			(3,436	)

		Year Ended December 31, 2018
		Foreign currency translation adjustments				Provision for retirement indemnities				Total
Beginning balance			(3,027	)			(577	)			(3,604	)
Other comprehensive income (loss) before reclassifications			-				-				-
Reclassified from accumulated other comprehensive loss			-				-				-
Net current-period other comprehensive income (loss)			(146	)			-				(146	)
Ending balance			(3,173	)			(577	)			(3,748	)

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