v2.4.0.8

Note 10 - Commitments and Contingencies (Details) (USD $) | 0 Months Ended | 1 Months Ended | 6 Months Ended |  |  |  |  | 0 Months Ended |  |  |  | 0 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 10, 2014 | Mar. 06, 2012 | Apr. 26, 2011 | Jul. 31, 2014 | Apr. 30, 2014 | Feb. 29, 2012 | Sep. 02, 2011 | May 13, 2011 | Jul. 24, 2012 Cost of Sales [Member] Product and Freight Costs (Member) | Apr. 30, 2010 Letter of Credit [Member] | Jul. 31, 2014 Previous Ownership Percentage [Member] | Jul. 31, 2014 New Ownership Percentage [Member] | Apr. 16, 2013 Additional Damages Sought [Member] | Feb. 04, 2014 Including Accrued Liabilities [Member] Chicony Power Technology Company Ltd [Member] | Jun. 02, 2014 Chicony Power Technology Company Ltd [Member] | Jun. 02, 2014 Chicony Power Technology Company Ltd [Member] | May 30, 2014 Chicony Power Technology Company Ltd [Member] | May 15, 2014 Chicony Power Technology Company Ltd [Member] | May 16, 2014 Chicony Power Technology Company Ltd [Member] | Feb. 04, 2014 Chicony Power Technology Company Ltd [Member]
Note 10 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of Stock, Number of Shares Issued in Transaction (in Shares) |  |  |  | 6,250,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  |  |  |  |  |  |  |  |  |  | 9.00% | 49.00% |  |  |  |  |  |  |  |
Letters of Credit Outstanding, Amount |  |  |  |  |  |  |  |  |  | $ 77,000 |  |  |  |  |  |  |  |  |  |
Deferred Compensation Liability, Current and Noncurrent |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Contingency, Damage Seeking, Value | 17,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  |  | 1,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency Amount Claimed for Recovery of Damages |  |  |  |  |  |  |  | 4,900,000 |  |  |  |  |  |  |  |  |  |  |  |
Gain Contingency, Unrecorded Amount |  |  |  |  |  |  |  |  |  |  |  |  | 15,000,000 |  |  |  |  |  |  |
Litigation Settlement, Amount |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,800,000 |  |  |  | 7,600,000 |  | 9,700,000
Previously Accrued Seeking Payments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,100,000
Proceeds from Legal Settlements |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,600,000 | 3,600,000 | 3,600,000 |  | 4,000,000 |
Former Gain Contingency, Recognized in Current Period |  |  |  |  | 7,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Units under Indemnity Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 500,000 |  |
Number of Patents Relating to Power Technology |  |  |  |  |  |  | 5 |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Comaro Patents |  |  |  |  |  | 5 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages Sought In Lawsuit |  | 2,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Litigation Settlement, Noncash, Recovery of Previously Incurred Costs |  |  |  |  |  |  |  |  | $ 1,400,000 |  |  |  |  |  |  |  |  |  |  |

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