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Note 5 - Dividends	3 Months Ended
Note 5 - Dividends	Mar. 31, 2013
Dividends [Text Block]	(5) Dividends In August 2010, we announced that our Board of Directors approved a regular cash dividend program to our stockholders, subject to approval each quarter. Quarterly cash dividends of $0.025 and $0.02 per share of common stock were paid in March 2013 and March 2012, respectively.