Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets - Additional Information (Details)

v3.20.2
Goodwill and Intangible Assets - Additional Information (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Dec. 31, 2018
Jun. 30, 2020
Jun. 30, 2019
Aug. 31, 2017
Aug. 31, 2016
Finite-Lived Intangible Assets [Line Items]          
Goodwill   $ 8,881 $ 8,881    
Amortization expense related to intangible assets   $ 1,000 $ 1,000    
Goodwill and intangible asset impairment $ 2,700        
Minimum          
Finite-Lived Intangible Assets [Line Items]          
Estimated useful lives of intangibles   3 years      
Maximum          
Finite-Lived Intangible Assets [Line Items]          
Estimated useful lives of intangibles   15 years      
SilverTowne Mint          
Finite-Lived Intangible Assets [Line Items]          
Intangibles acquired         $ 2,500
Goodwill         $ 4,300
Goldline, LLC          
Finite-Lived Intangible Assets [Line Items]          
Intangibles acquired       $ 5,000  
Goodwill       $ 1,400