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Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Numerator
Net income per consolidated statements of income	$ 1,603	$ 1,267	$ 3,332	$ 2,697
Percentage allocated to shareholders *	100.00%	99.00%	100.00%	99.00%
Numerator for basic and diluted earnings per share	$ 1,596	$ 1,260	$ 3,319	$ 2,682
Denominator
Denominator for Basic earnings per share - weighted-average shares outstanding	7,620	7,731	7,622	7,722
Denominator for diluted earnings per share	7,620	7,731	7,622	7,722
Per share income from continuing operations
Basic	$ 0.21	$ 0.16	$ 0.44	$ 0.34
Diluted	$ 0.21	$ 0.16	$ 0.44	$ 0.34

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