Note 4 - Earnings Per Share (Tables)

3 Months Ended

Jun. 30, 2017

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months ended		Three Months ended
	June 30, 2017		June 30, 2016
Net income (loss)	$	392,377	$	(335,208	)
Weighted average common shares outstanding - basic		3,188,895		3,176,654
Weighted average common shares outstanding - diluted		3,198,999		3,176,654
Income (loss) per common share - basic and diluted	$	0.12	$	(0.11	)
Anti-dilutive shares		121,686		87,481