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INCOME TAXES: (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Income Taxes
Increase in valuation allowance established on deferred tax assets	$ 0.01	$ 0.80
Unutilized tax credits	1.1
U.S.
Income Taxes
Net operating losses	41.5
State tax
Income Taxes
Net operating losses	$ 29.5

The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

The amount of the change in the period in the valuation allowance for a specified deferred tax asset.