Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets - Additional Information (Detail)

v3.10.0.1
Intangible Assets - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Finite Lived Intangible Assets [Line Items]    
Intangible amortization expense $ 59 $ 58
Customer Relationships [Member]    
Finite Lived Intangible Assets [Line Items]    
Intangible amortization expense 45 $ 45
Future amortization expenses, remainder of 2019 135  
Future amortization expenses, 2020 180  
Future amortization expenses, 2021 180  
Future amortization expenses, 2022 180  
Future amortization expenses, 2023 $ 180