Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
CURRENT ASSETS
Cash and cash equivalents	$ 11,133,563	$ 13,147,381
Marketable securities	403,884	406,134
Accounts receivable
Trade, less allowance for doubtful accounts of $2,009,461 and $1,986,531, respectively	17,632,969	13,440,565
Related parties	174,636	146,225
Unbilled gas	7,125,801	7,729,560
Note receivable - related parties, current portion	1,938	1,938
Inventory
Natural gas	843,404	5,464,744
Materials and supplies	2,543,815	2,413,745
Prepaid income taxes	675,928	727,427
Prepayments and other	1,675,645	1,064,845
Recoverable cost of gas purchases	8,411,607	1,298,299
Deferred tax asset	1,233,624	1,225,032
Discontinued operations	7,667	34,151
Total current assets	51,864,481	47,100,046
PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment	190,268,774	185,816,790
Less accumulated depreciation, depletion and amortization	(53,863,451)	(52,296,504)
PROPERTY, PLANT AND EQUIPMENT, NET	136,405,323	133,520,286
OTHER ASSETS
Notes receivable - related parties, less current portion	91,671	93,727
Regulatory assets
Property taxes	18,750	25,000
Income taxes	452,645	452,645
Rate case costs	119,397	130,228
Debt issuance costs, net of amortization	1,284,978	1,388,124
Goodwill	16,267,377	16,267,377
Customer relationships	3,154,625	3,230,333
Investment in unconsolidated affiliate	350,751	351,724
Restricted cash	2,087,574	1,137,442
Other assets	49,528	46,683
Total other assets	23,877,296	23,123,283
TOTAL ASSETS	212,147,100	203,743,615
CURRENT LIABILITIES
Checks in excess of amounts on deposit	1,112,132	843,634
Line of credit	23,629,799	24,529,799
Accounts payable
Trade	15,785,559	12,418,701
Related parties	253,906	559,933
Notes payable, current portion	3,500,000	3,502,190
Contingent consideration, current portion	671,638	671,638
Accrued liabilities
Taxes other than income	2,899,047	3,173,640
Vacation	110,254	95,806
Employee benefit plans	231,073	178,789
Interest	373,573	169,581
Deferred payments received from levelized billing	1,157,406	2,469,665
Customer deposits	773,040	761,022
Related parties	233,681
Capital lease obligation, current portion	177,570	177,570
Over-recovered gas purchases	177,228	793,184
Other current liabilities	1,403,781	1,482,375
Discontinued operations	9,181	45,855
Total current liabilities	52,498,868	51,873,382
LONG-TERM LIABILITIES
Deferred investment tax credits	128,989	134,255
Deferred tax liability	12,052,261	9,055,166
Asset retirement obligation	2,072,931	2,026,353
Customer advances for construction	1,016,803	1,016,671
Regulatory liability for income taxes	83,161	83,161
Long-term customer deposits	949,540
Capital lease obligation, less current portion	1,862,938	1,862,938
Contingent consideration, less current portion	13,362	13,362
Total long-term liabilities	18,179,985	14,191,906
NOTES PAYABLE, less current portion	40,073,552	40,198,552
COMMITMENTS AND CONTINGENCIES (see Note 11)
STOCKHOLDERS' EQUITY
Preferred stock; $0.15 par value, 1,500,000 shares authorized, no shares issued or outstanding
Common stock; $0.15 par value, 15,000,000 shares authorized, 10,451,678 and 10,451,678 shares issued and outstanding, respectively	1,567,752	1,567,752
Capital in excess of par value	63,777,299	63,468,969
Accumulated other comprehensive income	103,986	104,909
Retained earnings	35,945,658	32,338,145
Total stockholders' equity	101,394,695	97,479,775
TOTAL CAPITALIZATION	141,468,247	137,678,327
TOTAL LIABILITIES AND CAPITALIZATION	$ 212,147,100	$ 203,743,615