STOCK BASED COMPENSATION Employee Stock Purchase Plan (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation recognized	$ 6,075	$ 4,396	$ 4,442
Employee Stock Purchase Plan shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum annual contributions per employee, percent	15.00%
Call option for percent of share of stock	85.00%
ESPP shares issued	721,900	952,516	821,470
Per share price of ESPP shares issued	$ 2.50	$ 1.75	$ 2.11
Total number of common stock shares reserved for issuance	3,000,000
Stock compensation recognized	$ 600	$ 600	$ 600
Expected life (in years)	6 months	6 months	6 months
Expected volatility, range, minimum	37.10%	47.60%	40.40%
Expected volatility, range, maximum	50.30%	49.80%	48.40%
Expected dividend rate	0.00%	0.00%	0.00%
Risk-free interest rate, range, minimum	0.07%	0.11%	0.09%
Risk-free interest rate, range, maximum	0.08%	0.14%	0.20%

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.

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The minimum risk-free interest rate assumption that is used in valuing an option on its own shares.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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Number of share instruments newly issued under a share-based compensation plan.

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Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Share Granted, Percent Of Shares Of Stock, Call Option

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