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Note 6 - Income Per Common Share (Details) (Equity Option [Member])	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Equity Option [Member]
Note 6 - Income Per Common Share (Details) [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	108,500	136,500

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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