|
Note 3 - Customer and Supplier Concentrations (Details) (USD $)
|
12 Months Ended | 0 Months Ended | 3 Months Ended | |||
|---|---|---|---|---|---|---|
|
Jan. 31, 2014
|
Jan. 31, 2013
|
Feb. 04, 2014
Subsequent Event [Member]
Including Accrued Liabilities [Member]
Chicony Power Technology Company Ltd [Member]
|
Feb. 04, 2014
Subsequent Event [Member]
Chicony Power Technology Company Ltd [Member]
|
Oct. 31, 2013
Constellation Units [Member]
|
Oct. 31, 2013
Field Replacement Units [Member]
|
|
| Note 3 - Customer and Supplier Concentrations (Details) [Line Items] | ||||||
| Units Shipped | 20,000 | 11,000 | ||||
| Revenues | $ 4,429,000 | $ 6,338,000 | ||||
| Litigation Settlement, Amount | 10,800,000 | 9,700,000 | ||||
| Previously Accrued Seeking Payments | $ 1,100,000 | |||||