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Income Taxes (Detail 2) (USD $)
Sep. 30, 2014
Sep. 30, 2013
Deferred tax assets:    
Net operating losses-Foreign $ 6,426,000 $ 4,572,000
Net operating losses-US 1,674,000 2,107,000
Accrued vacation and bonus 2,040,000 2,342,000
Inventory capitalization 7,328,000 4,048,000
Inventory reserves 105,000 565,000
Allowance for doubtful accounts 291,000 252,000
Stock compensation expense 10,259,000 8,036,000
Amortization of intangibles 9,071,000 6,666,000
Pension liability 790,000 852,000
Other 273,000 352,000
Total deferred tax assets before valuation allowance 38,257,000 29,792,000
Less: valuation allowance (7,216,000) (5,424,000)
Net deferred tax assets 31,041,000 24,368,000
Deferred tax liabilities:    
Amortization of goodwill 16,022,000 7,339,000
Depreciation 754,000 1,235,000
Total deferred tax liabilities 16,776,000 8,574,000
Net deferred taxes 14,265,000 15,794,000
Prepaid and deferred taxes
    
Deferred taxes    
Net current deferred tax asset 12,321,000 10,558,000
Deferred taxes and other assets
    
Deferred taxes    
Net non-current deferred tax asset 6,160,000 5,236,000
Other liabilities
    
Deferred taxes    
Net non-current deferred tax liability $ 4,217,000