Earnings Per Share - Summary of Earnings Per Share Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Numerator:
Net income - numerator for basic earnings per share and diluted earnings per share - available to common stockholders	$ 1,176	$ 2,398	$ 2,661	$ 4,960
Denominator for basic earnings per share:
Weighted-average shares	7,442	7,482	7,439	7,482
Denominator for diluted earnings per share:
Adjusted weighted-average shares and assumed conversions	7,492	7,658	7,475	7,651
Basic earnings per share	$ 0.16	$ 0.32	$ 0.36	$ 0.66
Diluted earnings per share	$ 0.16	$ 0.31	$ 0.36	$ 0.65
Stock Options
Denominator for basic earnings per share:
Effect of dilutive shares	37	133	29	133
Restricted Stock
Denominator for basic earnings per share:
Effect of dilutive shares	13	43	7	36