XML 70 R58.htm IDEA: XBRL DOCUMENT v3.22.2
Note 8 - Investment in Joint Ventures (Details Textual)
Jun. 30, 2022
CETS [Member]  
Equity Method Investment, Ownership Percentage 50.00%
PVD-Expro [Member]  
Equity Method Investment, Ownership Percentage 49.00%