Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares	Mar. 31, 2016	Dec. 31, 2015
Common stock, par value (in Dollars per share)	$ 0	$ 0
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares outstanding	13,441,606	13,385,154
Common stock, shares issued	17,161,096	17,161,096