Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 4,657	$ 3,570
Accounts receivable:
Due from subscribers, net of allowance for doubtful accounts of $577 and $226, respectively	4,183	4,647
Other	1,899	1,875
Materials and supplies	2,802	2,700
Prepaid expenses	1,198	3,122
Total current assets	14,739	15,914
Property and equipment, net	52,073	50,888
Goodwill	44,976	44,976
Intangible assets, net	919	1,328
Investments	1,498	1,632
Interest rate cap	4
Other assets	143	201
Total assets	114,352	114,939
Current liabilities
Accounts payable	1,331	1,619
Accrued expenses	5,054	4,803
Advance billings and payments	1,614	1,684
Customer deposits	48	58
Notes payable, net of debt issuance cost, current	3,904	3,891
Total current liabilities	11,951	12,055
Deferred income taxes	20,145	18,939
Advance billings and payments	2,234	2,367
Other liabilities	13	13
Notes payable, net of debt issuance cost, long-term	69,107	80,058
Total liabilities	103,450	113,432
Stockholders' equity
Additional paid in capital	4,213	4,285
Retained earnings (accumulated deficit)	6,655	(2,812)
Total stockholders' equity	10,902	1,507
Total liabilities and stockholders' equity	114,352	114,939
Common Class A [Member]
Stockholders' equity
Class A Common Stock, $.01 par value-authorized 10,000,000 shares; issued and outstanding 3,388,624 and 3,346,689 shares, respectively	$ 34	$ 34