Note 14 - Noncontrolling Interests (Details) - Redeemable Units	12 Months Ended
	Dec. 31, 2014 $ / shares shares
Capital Unit, Class A [Member]
Note 14 - Noncontrolling Interests (Details) - Redeemable Units [Line Items]
Number of Units Issued | shares	13,963	[1]
Par Value Per Unit | $ / shares	$ 1,000	[1]
Return Per Annum	5.00%	[1]
Capital Unit, Class B [Member]
Note 14 - Noncontrolling Interests (Details) - Redeemable Units [Line Items]
Number of Units Issued | shares	647,758	[2]
Par Value Per Unit | $ / shares	$ 37.24	[2]
Return Per Annum		[2]

[1] These units are redeemable for cash by the holder or callable by the Company any time after April 3, 2016 and are included in Redeemable noncontrolling interests on the Company's Consolidated Balance Sheets.

[2] These units are redeemable for cash by the holder or at the Company's option, shares of the Company's common stock at a ratio of 1:1 and are callable by the Company any time after April 3, 2026. These units are included in Noncontrolling interests on the Company's Consolidated Balance Sheets.