Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Consolidated Statements of Income
Operating revenues	$ 98,794	$ 97,114
Operating expenses:
Cost of revenues (exclusive of depreciation and amortization)	42,479	40,183
Selling, general and administrative	29,865	29,732
Depreciation and amortization	21,950	21,280
Total operating expenses	94,294	91,195
Operating income	4,500	5,919
Other income (expense):
Interest expense	(4,240)	(4,337)
Interest income and other		7
Total other expense	(4,240)	(4,330)
Income before income tax provision	260	1,589
Income tax provision	106	614
Net income	$ 154	$ 975
Net income per common share -
Basic (in dollars per share)	$ 0.01	$ 0.09
Diluted (in dollars per share)	$ 0.01	$ 0.09
Weighted average shares used to compute net income per common share -
Basic (in shares)	11,475,834	10,692,198
Diluted (in shares)	11,500,308	11,272,922