Annual report pursuant to Section 13 and 15(d)

Note 18 - Restricted Cash and Investments (Details Textual)

v3.10.0.1
Note 18 - Restricted Cash and Investments (Details Textual) - USD ($)
$ in Thousands
Jun. 30, 2018
Jun. 30, 2017
Restricted Cash and Investments, Noncurrent, Total $ 0 $ 7,300
Letters of Credit Outstanding, Amount 6,200 $ 100
Letter of Credit Issued for Workers Compensation Obligation [Member]    
Letters of Credit Outstanding, Amount $ 5,900