Note 14 - Fair Value Measurements - Assets and Liabilities Carried at Fair Value Measured on a Recurring Basis (Details) - Fair Value, Measurements, Recurring [Member] $ in Thousands	Dec. 31, 2016 USD ($)
Foreign currency forwards, assets	$ 125
Total	125
Fair Value, Inputs, Level 1 [Member]
Foreign currency forwards, assets
Total
Fair Value, Inputs, Level 2 [Member]
Foreign currency forwards, assets	125
Total	125
Fair Value, Inputs, Level 3 [Member]
Foreign currency forwards, assets
Total

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

Name:	us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant