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.

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Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Intrinsic value of equity-based compensation awards outstanding. Excludes stock and unit options.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of stock repurchase plan authorized.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Stockholders' Equity - Narrative (Details) - USD ($)		1 Months Ended		12 Months Ended
Stockholders' Equity - Narrative (Details) - USD ($)	Feb. 28, 2018	Jul. 31, 2018	Apr. 30, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016	Aug. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, authorized amount							$ 2,000,000
Stock repurchased during the period (in shares)						33,933
Stock repurchased during the period						$ 86,000
Unvested restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)				1,295,632	1,250,000
Fair value of awards issued	$ 1,966,000				$ 3,054,000
Stock based compensation expense				$ 2,913,000	602,000	$ 9,000
Unrecognized share base-compensation expense				$ 4,484,000
Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (up to)				5 years
Stock based compensation expense					$ 202,000
Award expiration period				5 years
Director \| Unvested restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	363,558
Employee(s) \| Unvested restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	52,966	31,250	847,858
Fair value of awards issued		$ 100,000	$ 3,184,000