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Earnings per share (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Net income	$ 797,861	$ 575,476	$ 1,685,389	$ 1,337,472
Weighted-average shares, Basic	26,491,103	20,204,496	26,487,816	20,204,496
Weighted-average shares, Diluted	26,491,103	20,204,496	26,487,816	20,204,496
Earnings per share - Basic	$ 0.030	$ 0.028	$ 0.064	$ 0.066
Earnings per share - Diluted	$ 0.030	$ 0.028	$ 0.064	$ 0.066
Restricted Stock Units Shares			51,232

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration