Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Income Taxes (Details Textual)

v3.8.0.1
Note 10 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2018
Jun. 30, 2018
Jun. 30, 2017
Effective Income Tax Rate Reconciliation, Percent (124.70%) 50.80% (44.80%) 38.80%      
Income Tax Expense (Benefit), Discrete Tax Items $ (300) $ 2,900 $ (700) $ 3,800      
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Revaluation of Contingent Consideration     $ 4,600        
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent     35.00%        
Income Tax Expense (Benefit), Continuing Operations, Adjustments, New Legislation     $ (33,500)        
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability     (37,000)        
Income Tax Expense (Benefit), Continuing Operations, Adjustments on Transition Tax     3,500        
Accrued Income Taxes, Current         $ 2,478
Transition Tax [Member]              
Accrued Income Taxes, Current 300   300        
Accrued Income Taxes, Noncurrent $ 3,200   $ 3,200        
Scenario, Forecast [Member]              
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent         21.00% 28.10%