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Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) (Notes)
 3 Months Ended
Jun. 30, 2018
Accumulated Other Comprehensive Income [Abstract]  
Comprehensive Income (Loss) Note [Text Block]
13. Accumulated Other Comprehensive Income (Loss)
The following is a reconciliation of the changes in accumulated other comprehensive income (AOCI):
 
Foreign currency translation adjustment
 
Accumulated other comprehensive income related to benefit plan obligation
 
Net unrealized loss on available-for-sale securities
 
Total
Balance at March 31, 2018
$
590

 
$
(16
)
 
$
(27
)
 
$
547

Other comprehensive (loss) income before reclassifications and taxes
(1,228
)
 
6

 
22

 
(1,200
)
Amounts reclassified from AOCI
—

 
—

 
—

 
—

Tax effect
144

 
(2
)
 
(5
)
 
137

Other Comprehensive (loss) income
(1,084
)
 
4

 
17

 
(1,063
)
Balance at June 30, 2018
$
(494
)
 
$
(12
)
 
$
(10
)
 
$
(516
)