Subsequent Events (Details) - Subsequent Event [Member]	Dec. 07, 2020 $ / shares shares
Rights Agreement [Member]
Subsequent Event [Line Items]
Redemption price of Right	$ 0.001
Minimum percentage of ownership of outstanding common stock to become an Acquiring Person	20.00%
Percent discount common stock may be purchased at by Right holder	50.00%
Series C Junior Participating Preferred Stock [Member]
Subsequent Event [Line Items]
Preferred stock, par value	$ 1.00
Preferred stock, price per share	$ 210.00
Series C Junior Participating Preferred Stock [Member] \| Rights Agreement [Member]
Subsequent Event [Line Items]
Preferred stock shares for purchase by each Right \| shares	0.001

Minimum Percentage of Ownership of Outstanding Common Stock to Become an Acquiring Person

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- Definition

Percent discount common stock may be purchased at by Right holder

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
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Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

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- Definition

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
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The price per share at which the preferred stock of an entity that has priority over common stock in the distribution of dividends and in the event of liquidation of the entity is redeemed or may be called at. The redemption features of this preferred stock are solely within the control of the issuer.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (a)
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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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