Note 10 - Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Operating Segments [Member] | JBI [Member]
Assets	$ 1,951,000	$ 1,848,000
Operating Segments [Member] | DCS [Member]
Assets	985,000	949,000
Operating Segments [Member] | ICS [Member]
Assets	115,000	99,000
Operating Segments [Member] | JBT [Member]
Assets	271,000	286,000
Operating Segments [Member] | Corporate and Other [Member]
Assets	375,000	448,000
Assets	$ 3,697,364	$ 3,629,544