Note 14 - Fair Value - Financial Instruments Carried at Cost, as Well as the Related Fair Values (Details) - Fair Value, Inputs, Level 2 [Member] - Term Loan B [Member] - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Reported Value Measurement [Member]
Term Loan B	$ 375,800	$ 380,200
Estimate of Fair Value Measurement [Member]
Term Loan B	$ 304,398	$ 362,141

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611

Name:	us-gaap_DebtInstrumentFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant