Note 6 - Earnings (Loss) Per Share - Percentage of Net Earnings Allocable to Common Shareholders (Details) - shares	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Weighted average participating common shares (in shares)	32,020,575	31,906,572
Weighted average participating common shares (in shares)	32,020,575	31,906,572
Add: Weighted average shares of Convertible Preferred Stock (in shares)	255,000	255,000
Weighted average participating shares (in shares)	32,275,575	32,161,572
Portion allocable to common shareholders	99.20%	99.20%

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible preferred stock using the if-converted method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 40
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1930-109256

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