Amount of Available Common Shares Reduced by Each Share of Restricted Stock Granted.

No definition available.

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- Definition

Additional shares authorized by the Company's stockholders to increase shares available under the Company's 2010 Stock Incentive Plan.

+ References

No definition available.

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- Definition

Represents number of shares authorized including maximum additional number of outstanding options and restricted stock options under all plans.

+ References

No definition available.

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- Definition

Represents the number of shares authorized including maximum number of shares authorized but not issued under old plan.

+ References

No definition available.

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Section S99
-Paragraph 1
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- Definition

Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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-Name Accounting Standards Codification
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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

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- Definition

The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

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- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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Note N - Stockholders' Equity (Details Textual) - USD ($)				3 Months Ended		6 Months Ended		119 Months Ended	216 Months Ended
	Nov. 08, 2019	Aug. 09, 2019	Jun. 14, 2019	Sep. 29, 2019	Sep. 23, 2018	Sep. 29, 2019	Sep. 23, 2018	Sep. 29, 2019	Sep. 29, 2019	Sep. 30, 2019	Sep. 18, 2019	Jun. 30, 2019	Mar. 11, 2016	Sep. 13, 2012
Common Stock, Dividends, Per Share, Declared		$ 0.35	$ 0.35	$ 0.35	$ 0.25	$ 0.70	$ 0.50
Payments of Ordinary Dividends, Common Stock		$ 1,479,000	$ 1,479,000
Increased Number of Shares Available for Issuance Due to Plan Amendment														250,000
Amount of Available Common Shares Reduced by Each Share of Restricted Stock Granted														3.2
Treasury Stock, Shares, Acquired						0			5,141,763
Treasury Stock, Value, Acquired, Cost Method									$ 78,303,000
Sixth Stock Repurchase Plan [Member]
Treasury Stock, Shares, Acquired								954,132
Treasury Stock, Value, Acquired, Cost Method								$ 30,641,000
Stock Repurchase Program, Number of Shares Authorized to be Repurchased													1,200,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased												245,868
The 2019 Stock Incentive Plan [Member] \| July 01, 2020 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized											369,584
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Including Maximum Number of Shares Authorized but Not Issued under Old Plan											208,584
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Including Maximum Aditional Outstanding Options or Restricted Stock Grants											11,000
The 2010 Stock Incentive Plan [Member] \| Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant										208,584
The 2010 Stock Incentive Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant										184,808
Subsequent Event [Member]
Common Stock, Dividends, Per Share, Declared	$ 0.35