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Note 6 - Leases And Royalties (Details) - Summary of future payments for operating leases and royalties: (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Summary of future payments for operating leases and royalties: [Abstract]  
2014 $ 1,228
2014 2,399
2015 1,344
2015 2,494
2016 1,304
2016 1,364
2017 1,157
2017 621
2018 1,084
Thereafter 3,179
9,296
$ 6,878