| Schedule of changes in the carrying value of goodwill by operating segment |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Industrial
Materials
|
|
Construction Materials
|
|
Consolidated
|
|
|
Balance at August 31, 2015
|
|
$
|
33,390
|
|
$
|
10,733
|
|
$
|
44,123
|
|
|
Foreign currency translation adjustment
|
|
|
(211)
|
|
|
(13)
|
|
|
(224)
|
|
|
Balance at May 31, 2016
|
|
$
|
33,179
|
|
$
|
10,720
|
|
$
|
43,899
|
|
|
| Schedule of intangible assets subject to amortization |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Weighted-Average
|
|
Gross Carrying
|
|
Accumulated
|
|
Net Carrying
|
|
|
|
|
Amortization Period
|
|
Value
|
|
Amortization
|
|
Value
|
|
|
May 31, 2016
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Patents and agreements
|
|
12.5
|
years
|
$
|
2,531
|
|
$
|
2,277
|
|
$
|
254
|
|
|
Formulas and technology
|
|
8.4
|
years
|
|
8,359
|
|
|
4,172
|
|
|
4,187
|
|
|
Trade names
|
|
5.9
|
years
|
|
7,231
|
|
|
4,762
|
|
|
2,469
|
|
|
Customer lists and relationships
|
|
9.3
|
years
|
|
54,924
|
|
|
22,943
|
|
|
31,981
|
|
|
|
|
|
|
$
|
73,045
|
|
$
|
34,154
|
|
$
|
38,891
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
August 31, 2015
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Patents and agreements
|
|
12.5
|
years
|
$
|
2,568
|
|
$
|
2,267
|
|
$
|
301
|
|
|
Formulas and technology
|
|
8.4
|
years
|
|
8,415
|
|
|
3,513
|
|
|
4,902
|
|
|
Trade names
|
|
5.9
|
years
|
|
7,278
|
|
|
4,088
|
|
|
3,190
|
|
|
Customer lists and relationships
|
|
9.3
|
years
|
|
55,473
|
|
|
19,014
|
|
|
36,459
|
|
|
|
|
|
|
$
|
73,734
|
|
$
|
28,882
|
|
$
|
44,852
|
|
|