Annual report pursuant to Section 13 and 15(d)

National Holdings Corporation - gross carrying amounts related to acquired intangible assets (Detail)

v3.8.0.1
National Holdings Corporation - gross carrying amounts related to acquired intangible assets (Detail) - USD ($)
$ in Thousands
4 Months Ended 12 Months Ended
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Intangible assets $ 16,500 $ 15,991    
Amortization expense (509) (1,651) $ 0 $ 0
Intangible assets $ 15,991 $ 14,340 $ 15,991