Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net income	$ 3,917	$ 4,890
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion	3,747	4,029
Amortization of deferred financing costs	0	65
Deferred income tax expense	1,997	2,594
Amortization of stock based compensation	443	1,086
Provision for doubtful accounts, service credits and other	327	340
Adjustment of non-cash transaction taxes	(49)	(115)
(Gain) Loss on disposals of property and equipment	(18)	(2)
Changes in assets and liabilities:
Accounts receivable	1,268	(2,586)
Prepaid expenses and other assets	54	807
Accounts payable and accrued liabilities	(9,616)	(3,675)
Deferred revenue and customer deposits	530	378
Net cash provided by operating activities	2,600	7,811
Cash flows from investing activities:
Purchase of property and equipment	(1,040)	(2,643)
Proceeds from disposals of property and equipment	30	58
Net cash used in investing activities	(1,010)	(2,585)
Cash flows from financing activities:
Cash dividends to stockholders	(3,356)	(2,707)
Purchase of common stock	(466)	0
Net cash used in financing activities	(3,822)	(2,707)
Net (decrease) increase in cash and cash equivalents	(2,232)	2,519
Cash and cash equivalents, beginning of period	107,869	89,075
Cash and cash equivalents, end of period	105,637	91,594
Supplemental disclosure:
Income taxes paid	$ 337	$ 161