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Investments, deposits and other assets (Schedule of Investments, Deposits and Other Assets) (Details) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2012 | Sep. 30, 2011
--- | --- | ---
Current |  |
Certificates of deposit | $ 257 | $ 989
Loan origination fees |  |
Stock in agricultural cooperatives |  |
Deposits |  |
Water Permits |  |
Other |  |
Total | 257 | 989
Non-current |  |
Certificates of deposit |  | 120
Loan origination fees | 956 | 1,075
Stock in agricultural cooperatives | 517 | 560
Deposits | 352 | 263
Water Permits | 243 | 162
Other | 35 | 40
Total | 2,103 | 2,220
Total |  |
Certificates of deposit | 257 | 1,109
Loan origination fees | 956 | 1,075
Stock in agricultural cooperatives | 517 | 560
Deposits | 352 | 263
Water Permits | 243 | 162
Other | 35 | 40
Total | $ 2,360 | $ 3,209

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