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SUBSEQUENT EVENTS (Details) - Subsequent Events - Wilks Brothers, LLC	Oct. 25, 2021 $ / shares
SUBSEQUENT EVENTS
Outstanding common stock price (USD per share)	$ 2.34
Percentage of outstanding common shares	80.00%

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- Definition

Approval of percentage of outstanding shares second-step merger under the definitive merger agreement.

+ References

No definition available.

+ Details

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X

- Definition

Price of a single outstanding common stock per a merger agreement.

+ References

No definition available.

+ Details

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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.

+ References

No definition available.

+ Details

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Period Type:	duration

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- Details

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X

- Details

Name:	srt_CounterpartyNameAxis=dwsn_WilksBrothersLlcMember
Namespace Prefix:
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