Consolidated Balance Sheets - USD ($)	Jun. 30, 2016	Jun. 30, 2015
Current Assets
Cash and cash equivalents	$ 18,606,567	$ 16,924,278
Accounts receivable, less accumulated allowances for doubtful accounts of $301,000 and $258,000 in 2016 and 2015, respectively	4,741,595	5,760,550
Natural gas in storage, at average cost (Note 1)	3,289,920	4,634,162
Materials and supplies, at average cost	544,342	543,563
Prepayments	3,051,665	3,347,187
Total current assets	30,908,166	31,209,740
Property, Plant and Equipment	241,833,771	236,780,490
Less - Accumulated provision for depreciation	(104,192,898)	(98,741,351)
Net property, plant and equipment	137,640,873	138,039,139
Other Assets
Cash surrender value of life insurance (face amount of $954,000 and $951,000 in 2016 and 2015, respectively)	414,985	421,183
Prepaid Pension (Note 6)	0	2,145,969
Regulatory assets (Note 1)	18,881,126	14,917,823
Other non-current assets	1,033,979	977,312
Total other assets	20,330,090	18,462,287
Total assets	188,879,129	187,711,166
Current Liabilities
Accounts payable	4,200,298	5,426,395
Current portion of long-term debt (Note 10)	1,500,000	1,500,000
Accrued taxes	1,584,675	1,472,401
Customers' deposits	618,137	600,788
Accrued interest on debt	111,825	112,296
Accrued vacation	756,138	749,031
Regulatory Liability - refundable natural gas cost (Note )	0	756
Other liabilities	585,342	610,238
Total current liabilities	9,356,415	10,471,905
Long-Term Debt (Note 10)	50,422,796	51,916,296
Total liabilities	111,152,160	110,489,512
Shareholders' Equity
Common shares ($1.00 par value), 20,000,000 shares authorized; 7,087,762 and 7,026,500 shares outstanding at June 30, 2016 and June 30, 2015, respectively	7,087,762	7,026,500
Premium on common shares	49,472,542	48,735,608
Retained earnings	21,166,665	21,459,546
Total shareholders' equity	77,726,969	77,221,654
Long-Term Liabilities
Deferred income taxes	43,405,098	42,130,067
Investment tax credits	0	10,800
Regulatory liabilities (Note 1)	1,138,141	1,137,758
Accrued Pension	1,833,780	0
Asset retirement obligations (Note 4)	3,917,585	3,795,590
Other long-term liabilities	1,078,345	1,027,096
Total long-term liabilities	51,372,949	48,101,311
Total liabilities and shareholders' equity	$ 188,879,129	$ 187,711,166