Note 6 - Receivables, Net (Details) - Receivables (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Receivables [Abstract]    
Trade $ 18,689 $ 11,513
Insurance 1,806 4,980
Income tax 714 871
Other 310 236
Total accounts receivable 21,519 17,600
Less allowance for doubtful accounts (379) (333)
Receivables, net $ 21,140 $ 17,267