Consolidated Statements of Changes in Shareholders' Equity - USD ($)	Total	Common Shares [Member]	Premium on Common Shares [Member]	Retained Earnings [Member]
Balance at Jun. 30, 2014	$ 74,728,352	$ 6,942,758	$ 47,182,338	$ 20,603,256
Net Income	6,500,545	0	0	6,500,545
Issuance of common shares	398,764	19,771	378,993	0
Issuance of common shares under the incentive compensation plan, net of cancellations	442,581	57,330	385,251	0
Share-based compensation expense	592,091	0	592,091	0
Excess Tax benefit from share-based compensation	9,249	0	9,249	0
Dividends on common shares	(4,227,814)	0	0	(4,227,814)
Balance at Mar. 31, 2015	78,443,768	7,019,859	48,547,922	22,875,987
Balance at Jun. 30, 2015	77,221,654	7,026,500	48,735,608	21,459,546
Net Income	5,262,335	0	0	5,262,335
Issuance of common shares	483,996	22,859	461,137	0
Issuance of common shares under the incentive compensation plan, net of cancellations	(263,044)	32,825	(295,869)	0
Share-based compensation expense	383,482	0	383,482	0
Excess Tax benefit from share-based compensation	(5,508)	0	(5,508)	0
Dividends on common shares	(4,364,616)	0	0	(4,364,616)
Balance at Mar. 31, 2016	$ 78,718,299	$ 7,082,184	$ 49,278,850	$ 22,357,265