Note 9 - Notes and Mortgages Payable - Note Repayments (Details) $ in Millions	9 Months Ended
	Sep. 30, 2017 USD ($)
Term Loan [Member]
Amount Repaid	$ 250
Interest Rate		[1]
Maturity Date	Jan-17
Medium-term Notes [Member]
Amount Repaid	$ 211	[2]
Interest Rate	4.30%	[2]
Maturity Date	Feb-18	[2]

[1] Interest rate was equal to LIBOR + 0.95%.

[2] On August 1, 2017, the Company made a tender offer to purchase any and all of these MTN notes outstanding. As a result, the Company accepted the tender of $211.0 million of its $300.0 million outstanding MTN notes on August 10, 2017. In connection with this tender offer, the Company recorded a tender premium of $1.8 million resulting from the partial repayment of the MTN notes. Subsequently, in October 2017, the Company announced its intention to redeem the remaining $89.0 million outstanding on November 1, 2017.