XML 116 R89.htm IDEA: XBRL DOCUMENT v3.8.0.1
Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Thousands
12 Months Ended
Apr. 30, 2018
Apr. 30, 2017
Apr. 30, 2016
Accumulated other comprehensive loss      
Total accumulated other comprehensive loss balance as of April 30, 2017 $ (127)    
Total accumulated other comprehensive loss balance as of April 30, 2018 (21) $ (127)  
Unrealized gain, tax portion 25 43 $ 18
Other comprehensive income, tax 0    
Available-For-Sale Securities.      
Accumulated other comprehensive loss      
Total accumulated other comprehensive loss balance as of April 30, 2017 (127)    
Unrealized gains, net of $25 of taxes 70    
Total accumulated other comprehensive loss balance as of April 30, 2018 (57) (127)  
Foreign Currency Translation Adjustments      
Accumulated other comprehensive loss      
Change in foreign currency translation adjustments, net of $0 taxes 36    
Total accumulated other comprehensive loss balance as of April 30, 2018 36    
Accumulated Other Comprehensive Loss      
Accumulated other comprehensive loss      
Total accumulated other comprehensive loss balance as of April 30, 2017 (127)    
Change in foreign currency translation adjustments, net of $0 taxes 36    
Unrealized gains, net of $25 of taxes 70    
Total accumulated other comprehensive loss balance as of April 30, 2018 $ (21) $ (127)