|
Note 11 - Commitments and Contingencies (Details) (USD $)
|
0 Months Ended | 1 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mar. 06, 2012
|
May 23, 2012
|
Apr. 26, 2011
|
Oct. 31, 2013
|
Apr. 30, 2013
|
Oct. 31, 2012
|
Oct. 31, 2013
|
Oct. 31, 2012
|
Feb. 29, 2012
|
Sep. 02, 2011
|
May 13, 2011
|
Apr. 30, 2013
Previous Ownership Percentage (Member)
|
Apr. 30, 2013
New Ownership Percentage (Member)
|
Jan. 31, 2013
Additional Damages Sought [Member]
|
Apr. 30, 2010
Letter of Credit [Member]
|
Oct. 31, 2013
Component Inventory [Member]
|
Oct. 31, 2013
Minimum [Member]
|
Oct. 31, 2013
Maximum [Member]
|
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| Note 11 - Commitments and Contingencies (Details) [Line Items] | ||||||||||||||||||||||||
| Issue Purchase Orders to Suppliers with Delivery Dates | 28 days | 42 days | ||||||||||||||||||||||
| Forecasts of Material and Finished Goods Requirements Rolling Period | 6 months | |||||||||||||||||||||||
| Cost of Revenue | $ (1,400,000) | $ 1,567,000 | [1] | $ 929,000 | [1] | $ 4,029,000 | [1] | $ 2,672,000 | [1] | $ 317,000 | ||||||||||||||
| Sale of Stock, Number of Shares Issued in Transaction (in Shares) | 6,250,000 | |||||||||||||||||||||||
| Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | 9.00% | 47.00% | ||||||||||||||||||||||
| Letters of Credit Outstanding, Amount | 77,000 | |||||||||||||||||||||||
| Loss Contingency, Damages Sought, Value | 1,700,000 | 1,200,000 | ||||||||||||||||||||||
| Loss Contingency Amount Claimed for Recovery of Damages | 4,900,000 | |||||||||||||||||||||||
| Gain Contingency, Unrecorded Amount | 1,400,000 | 15,000,000 | ||||||||||||||||||||||
| Previously Accrued Seeking Payments | 1,100,000 | 1,100,000 | ||||||||||||||||||||||
| Number of Patents Relating to Power Technology | 5 | |||||||||||||||||||||||
| Number of Comarco Patents | 5 | |||||||||||||||||||||||
| Damages Sought in Lawsuit | $ 2,500,000 | |||||||||||||||||||||||
|
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