STOCK-BASED COMPENSATION - Valuation Assumptions (Details) - USD ($)	12 Months Ended
Sep. 30, 2018	Sep. 30, 2017
Assumptions for Black-Scholes:
Risk-free interest rate	2.84%	1.50%
Expected term in years	5 years 6 months	4 years
Volatility	33.00%	39.00%
Expected annual dividends	$ 0	$ 0
Value of options granted:
Number of options granted (in shares)	120,000	57,500
Weighted average fair value per share (in dollars per share)	$ 1.84	$ 1.19
Fair value of options granted (000s)	$ 221,000	$ 68,000

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- Definition

The fair value of options granted in period.

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No definition available.

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- Definition

The estimated amount of dividends to be paid to holders of the underlying shares (expected dividends) over the option's term. Dividends are taken into account because payment of dividends to shareholders reduces the fair value of the underlying shares, and option holders generally do not receive dividends.

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- Definition

The estimated measure of the 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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- Definition

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

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- Definition

Gross number of share options (or share units) granted during the period.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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