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Note 13 - Net Income Per Common Share (Details)	0 Months Ended
	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