Note 22 - Discontinued Operations - Reconciliation of the Pre-tax Loss on Discontinued Operations to the Net Loss on Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended																12 Months Ended
	Dec. 31, 2016	[1]	Sep. 30, 2016	[1]	Jun. 30, 2016	[1]	Mar. 31, 2016	[1]	Dec. 31, 2015	[1]	Sep. 30, 2015	[1]	Jun. 30, 2015	[1]	Mar. 31, 2015	[1]	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pre-tax (loss)/income from discontinued operations																	$ (8,777)	$ 63	$ (1,277)
Income tax benefit/(expense)																	3,130	(22)	447
(Loss)/income from discontinued operations, net of tax	$ (565)		$ (4,503)		$ (316)		$ (263)		$ 332		$ (129)		$ 213		$ (375)		$ (5,647)	$ 41	$ (830)

[1] Discontinued operations include charges for environmental remediation related to sites of divested businesses.