Consolidated Statements of Cash Flows - USD ($)	6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash Flows From Operating Activities
Net Income	$ 1,278,894	$ 2,345,408
Adjustments to reconcile net income (loss) to net cash from operating activities
Depreciation and amortization	3,330,959	3,213,307
Deferred income taxes and investment tax credits	762,097	1,282,460
Change in cash surrender value of officer's life insurance	9,312	(1,910)
Share-based compensation	314,734	825,011
Excess tax deficiency from share-based compensation	(7,581)	(9,574)
Increase in assets	(5,874,845)	(11,651,167)
Decrease (increase) in liabilities	(57,058)	634,725
Net cash used in operating activities	(243,488)	(3,361,740)
Cash Flows From Investing Activities
Capital expenditures	(3,489,892)	(5,087,895)
Proceeds from sale of property, plant and equipment	155,987	35,328
Other	(60,000)	(60,000)
Net cash used in investing activities	(3,393,905)	(5,112,567)
Cash Flows From Financing Activities
Dividends on common shares	(2,908,171)	(2,817,229)
Issuance of common shares	344,865	259,591
Excess tax benefit from share-based compensation	2,073	18,823
Payments Related to Tax Withholding for Share-based Compensation	(240,900)	0
Repayments of long-term debt	(1,500,000)	(1,500,000)
Borrowing on bank line of credit	0	126,430
Repayments on Lines of Credit	0	(126,430)
Net cash used in financing activities	(4,302,133)	(4,038,815)
Net Decrease in Cash and Cash Equivalents	(7,939,526)	(12,513,122)
Cash and Cash Equivalents, Beginning of Period	16,924,278	13,675,918
Cash and Cash Equivalents, End of Period	$ 8,984,752	$ 1,162,796