v3.10.0.1
Note 6 - Goodwill and Indefinite-lived Intangibles (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2017
Jun. 30, 2018
Jun. 30, 2018
Dec. 31, 2017
Jun. 30, 2017
Goodwill, Impairment Loss $ 0 $ 1,300 $ 1,263    
Goodwill, Ending Balance   16,288 16,288 $ 17,641 $ 20,512
Impairment of Intangible Assets (Excluding Goodwill), Total $ 0        
Energy Segment [Member]          
Goodwill, Impairment Loss     1,263    
Goodwill, Ending Balance   3,197 3,197 4,549 $ 7,422
Energy Segment [Member] | Orbital UK Reporting Unit [Member]          
Goodwill, Ending Balance   $ 3,200 $ 3,200 $ 4,500