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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 4) (Subsequent event, USD $) | 0 Months Ended | 12 Months Ended | 0 Months Ended
--- | --- | --- | ---
Feb. 05, 2013 Locker | Dec. 29, 2012 Locker | Feb. 15, 2013 Manganese Materials Company Pty. Ltd.
Subsequent Events |  |  |
Ownership percentage acquired | 100.00% |  |
Annual sales |  | $ 80,000,000 |
Purchase price | 54,900,000 |  |
Additional purchase price upon the achievement of certain gross profit targets | 7,900,000 |  |
Period over which additional consideration is to be paid | 2 years |  |
Proceeds from sale of business |  |  | 30,000,000
Deferred tax benefits associated with sale of business |  |  | $ 3,000,000

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