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Note 9 - Commitments and Contingencies (Details) - Lease Revenue Commitments (USD $)
Jun. 30, 2013
Lease Revenue Commitments [Abstract]  
2014 $ 4,101,000
2015 3,163,000
2016 2,558,000
2017 1,800,000
2018 1,407,000
Thereafter 3,223,000
$ 16,252,000