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Note 13 - Restructuring Expenses (Detail) (USD $)	3 Months Ended	6 Months Ended
Note 13 - Restructuring Expenses (Detail) (USD $)	Dec. 31, 2012 sqft	Dec. 31, 2012 sqft	Sep. 30, 2012 sqft
Area of Real Estate Property	28,000	28,000	38,000
Restructuring Charges (in Dollars)	$ 511,000	$ 1,393,000
Facility Closing [Member]
Restructuring Charges (in Dollars)	316,000
Employee Severance [Member]
Restructuring Charges (in Dollars)	$ 195,000

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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