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Note 11 - Supplemental Cash Flow Information - Supplemental Cash Flow Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Cash payments:    
Interest $ 464 $ 518
Income taxes (39)
Issuance of common shares as compensation 75 90
Issuance of common shares to fund deferred compensation plan $ 33 $ 127