PROPERTY, PLANT AND EQUIPMENT (Details) - Property, plant and equipment - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Communications Plant:
Communications Plant	$ 153,138,295	$ 127,634,435
Other Property	21,705,180	17,750,364
Video Plant	10,541,648	10,440,379
Total Property, Plant and Equipment	185,385,123	155,825,178
Land [Member]
Communications Plant:
Communications Plant	712,503	494,082
Building [Member]
Communications Plant:
Communications Plant	10,579,247	8,983,386
Other Support Assets [Member]
Communications Plant:
Communications Plant	15,890,991	13,963,236
Central Office And Circuit Equipment [Member]
Communications Plant:
Communications Plant	53,652,481	48,266,084
Cable And Wire Facilities [Member]
Communications Plant:
Communications Plant	69,700,385	52,123,759
Other Plant and Equipment [Member]
Communications Plant:
Communications Plant	404,883	404,883
Plant Under Construction [Member]
Communications Plant:
Communications Plant	$ 2,197,805	$ 3,399,005