Note 12 - Long-term Debt (Tables)  | 
3 Months Ended | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2016  | |||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||
| Schedule of Debt [Table Text Block] | 
  | 
||||||||||||||||||||||||||||||||
| X | ||||||||||
- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. No definition available. 
  | 
| X | ||||||||||
- References No definition available. 
  |