Note 1 - Basis of Presentation (Details Textual) $ in Millions |
3 Months Ended | 6 Months Ended | 12 Months Ended | |
|---|---|---|---|---|
|
Apr. 15, 2020
USD ($)
|
Jun. 30, 2020
USD ($)
|
Jun. 30, 2020
USD ($)
|
Dec. 31, 2019 |
|
| Proceeds from Paycheck Protection Program Under CARES Act | $ 8.4 | |||
| Increase (Decrease), Operating Lease Expense | $ (2.3) | $ (2.3) | ||
| Increase (Decrease), General and Administrative Expense | (5.0) | (5.0) | ||
| Increase (Decrease), Interest Expense, Net | $ (1.1) | $ (1.1) | ||
| Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Three Major Oil and Gas Companies [Member] | ||||
| Concentration Risk, Percentage | 54.00% | 63.00% | ||
| Number of Major Customers | 3 | 3 |
| X | ||||||||||
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The increase (decrease) during the period to general and administrative expense. No definition available.
|
| X | ||||||||||
- Definition The increase (decrease) during the period to the net amount of operating interest expense. No definition available.
|
| X | ||||||||||
- Definition The increase (decrease) during the period to the amount of operating lease expense. No definition available.
|
| X | ||||||||||
- Definition Represents the number of major customers accounting for 10% or more of the specified concentration risk benchmark, which includes, but not limited to, sales revenue, accounts receivable, etc. No definition available.
|
| X | ||||||||||
- Definition The cash inflow received from loan funding under the Paycheck Protection Program which was established under the Coronavirus Aid, Relief and Economic Security (CARES) Act in March 2020. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|