XML 26 R15.htm IDEA: XBRL DOCUMENT v3.5.0.2
Note 2 - Long-term Debt (Details Textual)
1 Months Ended 9 Months Ended
Apr. 28, 2016
USD ($)
Feb. 08, 2016
USD ($)
a
Apr. 30, 2016
USD ($)
Sep. 30, 2016
USD ($)
Jun. 30, 2016
USD ($)
Feb. 25, 2016
USD ($)
Dec. 31, 2015
$ / shares
Nov. 30, 2015
USD ($)
Senior Secured Debt [Member]                
Debt Instrument, Fee Amount           $ 2,250,000   $ 2,250,000
Repayments of Senior Debt   $ 10,500,000            
Percentage of Future Quarterly Interest Payments   50.00%            
2020 Convertible Senior Notes [Member] | Investors [Member]                
Debt Instrument, Fee Amount $ 400,000              
Unsecured Debt $ 10,000,000   $ 10,000,000          
Debt Instrument, Interest Rate, Stated Percentage 7.00%   7.00%          
Proceeds from Issuance of Debt $ 8,000,000   $ 8,000,000          
Debt Instrument, Convertible, Conversion Price | $ / shares             $ 6.75  
Debt Instrument, Unamortized Discount 2,000,000              
Debt Instrument, Convertible, Beneficial Conversion Feature $ 1,480,000     $ 1,500,000        
Fenner Valley Farms LLC [Member]                
Lease Term   99 years            
Area of Real Estate Property | a   2,100            
Termination Period After Lease Effective Date   20 years            
Lease Compounded Annual Return, Percentage   10.00%            
Minimum Future Payments from Leases Held for Investment   $ 14,400,000            
Reimbursement of Water Related Infrastructure from Leased Property, Annual Percentage   8.00%            
Maximum Reimbursement of Pipeline Related Development Expenses from Leased Property   $ 3,000,000            
Leased Property, Sale Price   1            
Long-term Debt         $ 12,000,000      
Legal Fees   490,000            
Proceeds from Leases Held-for-investment   $ 12,000,000