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Note 13 - Net Income Per Common Share (Details) | 0 Months Ended
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Jun. 14, 2013
Earnings Per Share [Abstract] |
Preferred Stock, Dividend Rate, Percentage | 10.00%us-gaap_PreferredStockDividendRatePercentage

X
- Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage rate used to calculate dividend payments on preferred stock. + References No definition available. + Details
Name: | us-gaap_PreferredStockDividendRatePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration