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Note 10 - Revolving Credit Facility Financing Agreement (Detail) - Borrowings under the Credit Facility: (USD $)
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Dec. 31, 2012
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Nov. 13, 2012
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|---|---|---|
| Revolving Credit Facility | $ 5,311,000 | $ 4,700,000 |
|
Cash Securing Letters of Credit [Member]
|
||
| Revolving Credit Facility | 4,635,000 | |
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Borrowings Under The Credit Facility [Member]
|
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| Revolving Credit Facility | 600,000 | |
|
Interest Payable [Member]
|
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| Revolving Credit Facility | $ 76,000 |