Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Accrued Liabilities

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Note 4 - Accrued Liabilities
6 Months Ended
Jun. 30, 2016
Notes to Financial Statements  
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
4.         Accrued Liabilities
 
Accrued liabilities consisted of the following (in thousands):
 
 
 
June 30,
2016
 
 
December 31,
2015
 
                 
Accrued professional fees
  $ 990     $ 388  
Customer advance payments
    442       20  
Accrued bonuses
    319       613  
Accrued vacation
    132       68  
Accrued clinical trial costs
    23       112  
Other accruals
    184       92  
Total accrued liabilities
  $ 2,090     $ 1,293