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Note 4 - Fair Value Measurement and Fair Value of Financial Instruments (Tables)
9 Months Ended
Jun. 30, 2016
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
 
 
June 30, 2016
 
       
       
 
 
Level 1
 
 
Level 2
 
 
Level 3
 
 
Total
 
                                 
Liabilities:
                               
Contingent acquisition consideration
    -       -     $ 151     $ 151  
Total Liabilities
    -       -     $ 151     $ 151  
 
 
September 30, 2015
 
       
 
 
Level 1
 
 
Level 2
 
 
Level 3
 
 
Total
 
                                 
Liabilities:
                               
Contingent acquisition consideration
    -       -     $ 468     $ 468  
Total Liabilities
    -       -     $ 468     $ 468  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
 
 
Contingent
Consideration
 
Balance, October 1, 2015
  $ 468  
Payment of contingent consideration
    (317 )
Balance, June 30, 2016
  $ 151