Stock-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	12 Months Ended
Dec. 31, 2018	Sep. 30, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation expense	$ 0.1
Expected period for recognition of unrecognized compensation expense	9 months 18 days
Nonqualified stock options unvested and outstanding	165,600
Restricted Stock Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share unvested and outstanding	236,562
Restricted Stock Awards \| 2014 Long Term Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issued	8,000
Weighted average grant date fair value of the restricted stock	$ 14.59
Grant date fair value of restricted stock issued	$ 0.1
Restricted stock restriction period	4 years
Unrecognized compensation expense	$ 3.7
Expected period for recognition of unrecognized compensation expense	2 years 6 months
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share unvested and outstanding	147,800
Restricted Stock Units (RSUs) \| 2014 Long Term Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issued	147,800
Weighted average grant date fair value of the restricted stock	$ 15.17
Restricted stock restriction period	4 years
Unrecognized compensation expense		$ 2.2
Expected period for recognition of unrecognized compensation expense		3 years 10 months 24 days
Grant date fair value of restricted stock	$ 2.2
Restricted stock units vesting rights	Each RSU represents a contingent right to receive one share of the Company’s common stock upon vesting.

Restricted stock restriction period.

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options grants in period grant date fair value.

+ References

No definition available.

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options, issued in period, grant date fair value.

+ References

No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued 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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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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- Definition

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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- Definition

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

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- Definition

Number of non-vested options outstanding.

+ References

No definition available.

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