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Note 2 - Acquisitions and Dispositions - Purchase Price Allocation (Details) - USD ($)
$ in Thousands
Aug. 06, 2015
Jul. 06, 2015
Infitrak Acquisition [Member]    
Cash consideration   $ 8,748
Holdback payment liability   637
Contingent consideration liability   9,541
Aggregate consideration   18,926
Accounts receivable, net   925
Inventories, net   310
Property, plant and equipment, net   530
Intangibles, net   5,869
Goodwill   12,529
Accounts payable   470
Accrued liabilities   767
Total purchase price allocation   $ 18,926
North Bay Acquisition [Member]    
Cash consideration $ 10,322  
Holdback payment liability 1,000  
Aggregate consideration 11,322  
Accounts receivable, net 285  
Inventories, net 85  
Property, plant and equipment, net 229  
Intangibles, net 4,454  
Goodwill 7,962  
Accrued liabilities 100  
Total purchase price allocation 11,322  
Cash 20  
Unearned revenues $ 1,613