XML 28 R28.htm IDEA: XBRL DOCUMENT v3.2.0.727
Note 2 - Accounts Receivable (Details) - USD ($)
$ in Millions
Jun. 30, 2015
Dec. 31, 2014
Receivables [Abstract]    
Allowance for Doubtful Accounts Receivable, Current $ 3.0 $ 2.9