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Note 3 - Net Earnings Per Share (Details) - Basic and Diluted Earnings per Common Share (USD $)
3 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Basic and Diluted Earnings per Common Share [Abstract]    
Net earnings $ 72,797 $ 138,511
Earnings Per Share:    
Basic $ 0.03 $ 0.06
Diluted $ 0.03 $ 0.06
Weighted Average Shares Outstanding:    
Basic 2,355,028 2,446,286
Diluted 2,379,576 2,470,054