Note 4 - Other Assets (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012 Deferred Loan Costs [Member]	Dec. 31, 2011 Deferred Loan Costs [Member]	Dec. 31, 2010 Deferred Loan Costs [Member]	Dec. 31, 2011 Prepaid Rent [Member]	Dec. 31, 2010 Prepaid Rent [Member]	Dec. 31, 2009 Prepaid Rent [Member]
Amortization of Deferred Charges	$ 108,000	$ 72,000	$ 42,000	$ 1,088,000	$ 136,000	$ 132,000