Note 4 - Fair Value Measurement (Details Textual) - Concrete Pumping Holdings Acquisition Corp [Member] |
1 Months Ended | |
|---|---|---|
|
Nov. 30, 2016
USD ($)
|
Nov. 30, 2016
USD ($)
|
|
| Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | $ 3,100,000 | $ 3,100,000 |
| Business Combination, Contingent Consideration Arrangements, Average EBITDA following the Acquisition Date, Term | 3 years | 3 years |
| X | ||||||||||
- Definition For contingent consideration arrangements recognized in connection with a business combination, this element represents the term following the acquisition date for the average EBITDA that will determine the amount of contingent consideration. No definition available.
|
| X | ||||||||||
- Definition For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
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