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Note 4 - Fair Value Measurement and Fair Value of Financial Instruments (Tables)
3 Months Ended
Dec. 31, 2015
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
 
 
December 31, 2015
 
 
 
Level 1
 
 
Level 2
 
 
Level 3
 
 
Total
 
                                 
Liabilities:
                               
Contingent acquisition consideration
     -        -     $ 301     $ 301  
Total Liabilities
  $ -     $ -     $ 301     $ 301  
 
 
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
    (167 )
Balance, December 31, 2015
  $ 301