Stock Based Compensation - Additional Information (Details)	Jun. 30, 2019 USD ($)
Xcede Technologies, Inc [Member]
Class of Stock [Line Items]
Equity Method Investment, Ownership Percentage	63.00%
Xcede joint venture [Member] \| Subsidiary option grants [Member]
Class of Stock [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options	$ 10,000
Employee Stock Plan [Member]
Class of Stock [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options	$ 32,000

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Unrecognized cost of unvested options awarded to employees as compensation.

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-Publisher FASB
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-Topic 718
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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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