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Note 2 - Earnings Per Common Share (Details Textual)	3 Months Ended
Note 2 - Earnings Per Common Share (Details Textual)	Mar. 31, 2015	Mar. 31, 2014
Equity Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	160,800	108,500
Unvested Performance Unit Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	48,861	35,964

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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