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Merger (Details)	Feb. 11, 2015 $ / shares shares	Dec. 31, 2018 $ / shares	Dec. 31, 2017 $ / shares
Common stock, par value (in dollars per share)		$ 0.01	$ 0.01
Legacy TGC
Common stock, par value (in dollars per share)	$ 0.01
Reverse stock split ratio	0.33
Split-effected Exchange Ratio (in shares) | shares	1.760
Legacy Dawson
Common stock, par value (in dollars per share)	$ 0.3333

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- Definition

Face amount or stated value per share of common stock.

+ References

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-SubTopic 10
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-Paragraph 1
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- Definition

The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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- Definition

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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