Operating Segments (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Operating Revenues [Abstract]
Regulated revenues	$ 17,193,029	$ 23,144,565	$ 33,900,724	$ 45,390,815
Total operating revenues	26,202,462	35,085,307	53,269,232	74,281,878
Net income (loss) [Abstract]
Net Income	3,983,000	4,155,000	5,262,335	6,500,545
Operating Segments [Member]
Operating Revenues [Abstract]
Total operating revenues	26,202,000	35,085,000	53,269,000	74,282,000
Regulated Operation [Member]
Net income (loss) [Abstract]
Net Income	3,675,000	3,814,000	4,860,000	5,843,000
Regulated Operation [Member] | Operating Segments [Member]
Operating Revenues [Abstract]
External customers	17,193,000	23,144,000	33,900,000	45,391,000
Regulated revenues	18,505,000	24,499,000	36,802,000	48,533,000
Regulated Operation [Member] | Intersegment Elimination [Member]
Operating Revenues [Abstract]
External customers	1,312,000	1,355,000	2,902,000	3,142,000
Unregulated Operation [Member]
Net income (loss) [Abstract]
Net Income	308,000	341,000	402,000	658,000
Unregulated Operation [Member] | Operating Segments [Member]
Operating Revenues [Abstract]
External customers	9,009,000	11,941,000	19,369,000	28,891,000
Unregulated Operation [Member] | Intersegment Elimination [Member]
Operating Revenues [Abstract]
External customers	$ (1,312,000)	$ (1,355,000)	$ (2,902,000)	$ (3,142,000)