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Income Taxes (Deferred Tax Assets and Liabilities) (Details) (USD $)
In Thousands
Jun. 30, 2011
Jun. 30, 2010
Income Taxes    
Allowance for accounts receivable $ 2,857 $ 4,164
Inventories 11,310 7,891
Nondeductible accrued expenses 2,204 974
Net operating loss carryforwards 452 290
Tax credits 241 643
Deferred compensation 4,822 3,132
Stock compensation 2,868 4,857
Total deferred tax assets 24,754 21,951
Valuation allowance (517) (712)
Total deferred tax assets 24,237 21,239
Timing of amortization deduction from intangible assets (2,717) (2,317)
Timing of depreciation and other deductions for building and equipment (238) (459)
Total deferred tax liabilities (2,955) (2,776)
Net deferred tax assets $ 21,282 $ 18,463