Common Stock, Dividends, Per Share, Declared, Increase Authorized

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- Definition

Pre tax compensation expense related to director fees, annual retainers, and deferred compensation amortization.

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- Definition

Weighted average purchase price of capital shares purchased through an employee stock purchase plan.

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No definition available.

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- Definition

Number Of Directors

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- Definition

Quarterly Installment of Annual Cash Retainer

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- Definition

Quarterly Installment Of Annual Cash Retainer, Percentage

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- Definition

Quarterly Installment Of Annual Cash Retainer, Percentage Change

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Options, Grants in Period, Aggregate Grant Date Market Value

+ References

No definition available.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award, Options, Aggregate 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, Grants in Period, Aggregate Grant Date Market Value

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No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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-Name Accounting Standards Codification
-Topic 718
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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

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-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

+ References

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ References

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

+ References

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- Definition

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).

+ References

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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).

+ References

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- Definition

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.

+ References

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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.

+ References

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- Definition

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

+ References

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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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No definition available.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

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

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- Definition

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

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No definition available.

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- Definition

Percentage of vesting of award under share-based payment arrangement.

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
-Paragraph 2
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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

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- Definition

Amount remaining of a stock repurchase plan authorized.

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No definition available.

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Stockholders' Equity (Narrative) (Details)															3 Months Ended					9 Months Ended
Stockholders' Equity (Narrative) (Details)	Oct. 27, 2020 $ / shares	Sep. 01, 2020 $ / shares	Aug. 31, 2020 shares	Jun. 30, 2020 shares	Jun. 26, 2020 shares	Jun. 25, 2020 shares	Jun. 01, 2020 $ / shares	May 19, 2020 $ / shares shares	Apr. 19, 2020 USD ($)	Mar. 01, 2020 $ / shares	Feb. 19, 2020 USD ($)	Sep. 01, 2019 $ / shares	Jun. 03, 2019 $ / shares	Mar. 01, 2019 $ / shares	Dec. 31, 2020	Sep. 30, 2020 USD ($) director $ / shares shares	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019 USD ($) $ / shares	Sep. 30, 2020 USD ($) director $ / shares shares	Sep. 30, 2019 USD ($) $ / shares	Jun. 28, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield																				1.67%
Quarterly installment of annual cash retainer									$ 29,750		$ 35,000
Cash retainer, percentage change									15.00%
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition																				1 year 2 months 12 days
Number Of Directors \| director																6				6
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount																$ 1,100,000				$ 1,100,000
Directors compensation expense																$ 250,000			$ 114,000	$ 653,000	$ 341,000
Dividends declared per common share (in dollars per Share) \| $ / shares		$ 0.0875					$ 0.0750			$ 0.0750		$ 0.0750	$ 0.0750	$ 0.0750		$ 0.0875			$ 0.075	$ 0.2375	$ 0.225
Stock Repurchase Program, Remaining Authorized Repurchase Amount																$ 25,600,000				$ 25,600,000
Stock Issued During Period, Shares, Employee Stock Purchase Plans \| shares																15,706				59,020
Employee Stock Purchase Plan Weighted Average Purchase Price Of Shares Purchased (in USD per share) \| $ / shares																$ 18.96				$ 15.6
Dividends declared per common share, increase (in dollars per Share) \| $ / shares								$ 0.05
Expected volatility																				38.54%
Quarterly Installment Of Annual Cash Retainer, Percentage																						100.00%
Risk-free interest rate																				0.25%
Expected holding period (years)																				3 years 8 months 26 days
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period \| shares																10,200
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options, Grants in Period, Aggregate Grant Date Market Value																$ 300,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value \| $ / shares																$ 25.00
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period																				3 years
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield																				0.01%
Share-based compensation expense																$ 95,000			$ 58,000	$ 339,000	$ 224,000
Expected volatility																				48.63%
Risk-free interest rate																1.57%	1.57%	1.54%
Expected holding period (years)																9 months	6 months	3 months
ESPP \| Forecast
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate															1.56%
Expected holding period (years)															1 year
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense																$ 183,000			196,000	$ 551,000	624,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage																				33.00%
Share-based compensation expense																$ 165,000			160,000	$ 502,000	513,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross \| shares																				20,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Options, Grants in Period, Aggregate Grant Date Market Value																				$ 100,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period																				3 years
Stock Options \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period																				10 years
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period \| shares			6,987	2,795		13,974		368,921												368,921
Expected volatility			37.71%	37.43%		36.24%		34.54%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period \| shares					33,538
Risk-free interest rate			0.24%	0.20%		0.29%		0.33%
Expected holding period (years)			4 years 3 months 29 days	4 years 5 months 1 day		4 years 6 months 7 days		4 years 7 months 13 days
Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross \| shares																8,540				25,220
Share Based Compensation Arrangement By Share Based Payment Award, Options, Aggregate Grant Date Fair Value																$ 200,000				$ 500,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value \| $ / shares																$ 22.41				$ 18.88
Officers And Key Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Directors compensation expense																$ 286,000			$ 61,000	$ 589,000	$ 138,000
Good to Great Incentive Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value																				$ 400,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value \| $ / shares																				$ 25.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross \| shares																				17,991
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends declared per common share, increase (in dollars per Share) \| $ / shares	$ 0.10