Note 10 - Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block]

	2016			2015
Change in Benefit Obligation
Benefit obligation at beginning of the year	$	6,394		$	8,186
Benefit periodic cost		319			416
Interest cost		144			169
Withdrawal		(377	)		(256	)
Benefits paid		(289	)		(379	)
Actuarial (gain) loss		(1,117	)		(523	)
Translation adjustment		128			(1,219	)
Benefit obligation at year end	$	5,202		$	6,394

	2016			2015
Change in Plan Assets
Fair value of plan assets at beginning of the year	$	5,466		$	6,159
Actual return on plan assets		182			185
Contributions		303			541
Withdrawal		(237	)		(196	)
Settlement/curtailment		82			-
Benefits paid		(297	)		(250	)
Administrative fee		(56	)		(61	)
Actuarial loss		(63	)		55
Translation adjustment		106			(967	)
Fair value of plan assets at end of year	$	5,486		$	5,466

	2016		2015
Funded status	$	284	$	(928	)

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

	December 31,
	2016		2015
Other liabilities	$	87	$	1,104

	Year Ended December 31,
	2016			2015
Components of Net Period Benefit Cost
Service cost	$	329		$	416
Interest cost		149			169
Return on plan assets		(182	)		(185	)
Payroll tax		52			65
Administrative fee		56			61
Recognized net actuarial gain		(381	)		(609	)
Net periodic benefit cost	$	23		$	(83	)

Schedule of Assumptions Used [Table Text Block]

Weighted-average assumptions	2016			2015
Discount rate		2.6	%		2.7	%
Return on plan assets		3.6	%		2.2	%
Rate of compensation increase		2.5	%		1.3	%

Schedule of Allocation of Plan Assets [Table Text Block]

	2016		2015		Level
Equity securities		5%		7%	1
Property		10%		14%	3
Money market		24%		22%	2
Held-to-Maturity bonds		32%		35%	2
Bonds		7%		17%	1
Other		22%		5%	3
All asset categories		100%		100%

Schedule of Expected Benefit Payments [Table Text Block]

Year ended December 31,	Benefit Payments
2017		332
2018		342
2019		352
2020		363
2021		374
Total	$	1,763