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Note 19 - Business Segments (Restated) - Revenues as Reported in the Geographic Area (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2015
Revenues		$ 166,365	$ 157,185	$ 179,364	$ 189,898	$ 166,519	$ 184,617	$ 159,861	$ 151,594	$ 692,812	[1]	$ 662,591	[1]	$ 594,644	[1]
UNITED STATES
Revenues	[1]									301,132		307,025		286,509
INDONESIA
Revenues	[1]									28,968		100,856		93,191
KENYA
Revenues	[1]									110,243		109,270		86,545
TURKEY
Revenues	[1]									125,166		46,270		57,356
CHILE
Revenues	[1]									8,895		58,032		34,478
GUATEMALA
Revenues	[1]									27,991		30,086		27,897
NEW ZEALAND
Revenues	[1]									33,395
Other Foreign Countries [Member]
Revenues	[1]									$ 57,022		$ 11,052		$ 8,668
[1] Revenues as reported in the geographic area in which they originate.

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

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