Note 14 - Concentration Risks (Details Textual)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Period After End of Month of Delivery When Payment is to Be Made	30 days
Entity Number of Employees	244
Number of Seasonal Employees	149
Number of Farming Supervision and Management Employees	18
Number of Production Maintenance and Agricultural Operations Employees	206
Number of Accounting and Administration Employees	17
Lease Agreement One [Member]
Term of Agreement	99 years
Lease Agreement One [Member] | Minimum [Member]
Remaining Agreement Term		64 years
Lease Agreement Two [Member]
Term of Agreement	99 years
Lease Agreement Two [Member] | Maximum [Member]
Remaining Agreement Term		65 years
Licensing Agreements [Member]
Term of Agreement	50 years
Remaining Agreement Term	15 years