Note 8 - Commitments and Contingencies (Detail) - Future Minimum Lease Income (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
2013	$ 145
2014	145
2015	155
2016	155
2017	155
Thereafter	310
Total	$ 1,065

Amount of minimum lease payments to be received by the lessor for capital leases.

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-Name Accounting Standards Codification

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-Section 50

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Amount of minimum lease payments to be received by the lessor in the next fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments to be received by the lessor after the fifth fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments to be received by the lessor in the fifth fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments to be received by the lessor in the fourth fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments to be received by the lessor in the third fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments to be received by the lessor in the second fiscal year following the latest fiscal year for capital leases.

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