Note 5 - Restricted Cash (Details Textual) $ in Millions |
Jun. 30, 2018
USD ($)
|
|---|---|
| Letter of Credit Issued for Workers Compensation Obligation [Member] | |
| Letters of Credit Outstanding, Amount | $ 5.9 |
| X | ||||||||||
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. No definition available.
|
| X | ||||||||||
- Details
|