Schedule Of Goodwill And Intangible Assets [Line Items]

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Goodwill and Intangibles - Additional Information (Detail) - USD ($)		12 Months Ended
	Jul. 17, 2017	Dec. 31, 2019	Dec. 31, 2018
Schedule Of Goodwill And Intangible Assets [Line Items]
Goodwill		$ 1,702,000	$ 1,702,000
Intangible asset amortization		67,000	67,000
Impairments of goodwill recognized		0	0
General and Administrative Expense [Member]
Schedule Of Goodwill And Intangible Assets [Line Items]
Intangible asset amortization		$ 67,000	$ 67,000
Customer Relationships [Member]
Schedule Of Goodwill And Intangible Assets [Line Items]
Amortization period of intangible assets		4 years
Comstock Environmental [Member]
Schedule Of Goodwill And Intangible Assets [Line Items]
Purchase price of business assets	$ 2,300,000