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Note 3 - Supplemental Cash Flow Information
3 Months Ended
Mar. 31, 2019
Notes to Financial Statements  
Cash Flow, Supplemental Disclosures [Text Block]
(
3
)
Supplemental Cash Flow Information
 
    Three Months Ended
March 31,
    2019   2018
    (in thousands)
Cash paid for:                
Interest   $
47
    $
114
 
Income taxes, net of refunds    
(156
)    
-
 
                 
Non-cash investing and financing activities:                
Capital additions accrued but not yet paid   $
108
    $
197
 
Recognition of lease asset and liability (ASC 842)   $
3,831
    $
-