Share-based Compensation Arrangement by Share-based Payment Award Available for Grant [Roll Forward]

No definition available.

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- Definition

Number of share-based compensation awards forfeited or expired in Period

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Grants in Period, Gross

+ References

No definition available.

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- Definition

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

+ References

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- Definition

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

+ References

No definition available.

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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

Number of share options (or share units) exercised during the current period.

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Stock-Based Compensation (Activity in the Stock Plan) (Details) - shares	1 Months Ended	9 Months Ended	141 Months Ended	189 Months Ended
	May 31, 2014	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2020
Employee Stock Award Plan-2008
Authorized Shares Available for Future Award Grants
Beginning balance (in shares)		834,910	1,900,000
Additional shares authorized (in shares)	1,500,000	0	1,500,000
Number of awards granted (in shares)		(165,024)	(3,281,445)
Number of awards forfeited or expired (in shares)		34,874	586,205
Ending balance (in shares)		704,760	704,760	704,760
Employee Stock Award Plan-2008 \| Options Awards
Authorized Shares Available for Future Award Grants
Number of option awards exercised (in shares)		7,200	1,450,389
Employee Stock Award Plan-2008 \| Unrestricted Stock Awards
Authorized Shares Available for Future Award Grants
Number of awards granted (in shares)		0	(10,090)
Employee Stock Award Plan-2008 \| Restricted Stock Awards
Authorized Shares Available for Future Award Grants
Number of restricted stock awards vested (in shares)		63,600	164,378
Director Plan - 2005
Authorized Shares Available for Future Award Grants
Beginning balance (in shares)		34,863		300,000
Additional shares authorized (in shares)		150,000		150,000
Number of awards granted (in shares)		(24,728)		(313,868)
Number of awards forfeited or expired (in shares)		0		24,003
Ending balance (in shares)		160,135	160,135	160,135
Director Plan - 2005 \| Options Awards
Authorized Shares Available for Future Award Grants
Number of option awards exercised (in shares)		14,183		133,275
Director Plan - 2005 \| Restricted Stock Awards
Authorized Shares Available for Future Award Grants
Number of restricted stock awards vested (in shares)		14,300		98,491