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Note 3 - Accounts Receivable and Unbilled Receivables (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Sep. 30, 2015
Trade Accounts Receivable [Member]    
Accounts receivable $ 2,377 $ 2,228
Unbilled Receivables Member    
Accounts receivable 201 306
Accounts receivable 2,578 2,534
Allowance for doubtful accounts (71) (71)
Accounts receivable and unbilled receivables, net $ 2,507 $ 2,463