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Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Numerator:
Net income per consolidated statements of income	$ 1,420	$ 813
Less: Allocation of earnings to participating securities	(11)	(14)
Net income allocated to common stock	1,409	799
Basic earnings per share computation:
Net income allocated to common stock	$ 1,409	$ 799
Weighted average common shares outstanding, including shares considered participating securities	7,890	7,851
Less: Weighted average participating securities outstanding	(71)	(131)
Weighted average shares of common stock	7,819	7,720
Basic earnings per share	$ 0.18	$ 0.10
Diluted earnings per share computation:
Net income allocated to common stock	$ 1,420	$ 799
Undistributed earnings re-allocated to participating securities	0	0
Numerator for diluted earnings per share	$ 1,420	$ 799
Weighted average common shares outstanding for basic earnings per share	7,819	7,720
Incremental shares from stock options	11	53
Weighted average shares and dilutive potential common shares	7,828	7,773
Diluted earnings per share	$ 0.18	$ 0.10

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