Employee Stock Purchase Plan Discount

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- Definition

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

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- Definition

Amount, after tax, of expense for award under share-based payment arrangement.

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No definition available.

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- Definition

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

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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

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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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

Number of shares issued under share-based payment arrangement.

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- Definition

Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

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Stock-Based Compensation (Stock-Based Compensation and Related Tax Benefit) (Details) - USD ($)		3 Months Ended		9 Months Ended
	Apr. 01, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense		$ 678,000	$ 685,000	$ 2,746,000	$ 3,273,000
Recognized tax benefit		(151,000)	(144,000)	(612,000)	(687,000)
Net stock-based compensation expense		$ 527,000	541,000	$ 2,134,000	$ 2,586,000
Employee Stock Purchase Plan Discount		1500.00%		1500.00%
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period				4,347	3,680
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		$ 3,000,000		$ 3,000,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition				1 year 10 months 24 days
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period				4,347	3,680
Non-employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense		60,000	53,000	$ 310,000	$ 288,000
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense		597,000	615,000	2,381,000	2,950,000
Employee Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense		21,000	17,000
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense		0	0	0	(12,000)
Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense		$ 618,000	$ 632,000	2,436,000	2,985,000
Treasury Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	$ 396,000
Employee Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense				$ 55,000	$ 47,000