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Note 12 - Supplemental Cash Flow Information - Supplemental Cash Flow Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Cash Payments:    
Interest $ 990 $ 2,222
Income taxes 6 86
Issuance of common shares as compensation 300 355
Issuance of common shares to fund deferred compensation plan $ 473 $ 290