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Note 1 - Summary of Significant Accounting Policies (Details) - Calculation of Earnings Per Share (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) (in Dollars) | $ 3,339 | [1] | $ 1,973 | [1] | $ 1,891 | [1] | $ (1,959) | [1] | $ 1,452 | [1] | $ 1,002 | [1] | $ 4,251 | [1] | $ (640) | [1],[2] | $ 5,244 | $ 6,065 | $ (14,267)
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Denominator for basic income (loss) per share – weighted-average shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 14,837 | 14,742 | 14,689
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equivalent shares issuable upon conversion of unvested restricted stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 202 | 66 |
Equivalent shares issuable upon conversion of unvested employee stock options |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Denominator for diluted income (loss) per share adjusted weighted-average shares and assumed conversions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15,039 | 14,808 | 14,689
Net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic income (loss) per share (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.35 | $ 0.41 | $ (0.97)
Diluted income (loss) per share (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.35 | $ 0.41 | $ (0.97)
[1] | Quarter totals do not aggregate to annual results due to rounding.
[2] | Includes $2.4 million gain on the sale of a terminal property.

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