Condensed Consolidated Statement of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows provided by operating activities:
Net income	$ 511	$ 854
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion	2,713	3,223
Deferred income tax expense	475	279
Stock based compensation	1,234	955
Provision for doubtful accounts, service credits and other	628	223
Adjustment of non-cash transaction taxes	(53)	(122)
Changes in assets and liabilities:
Accounts receivable	(4,106)	(636)
Prepaid expenses, inventory, and other assets	(1,202)	(146)
Accounts payable, accrued liabilities and other	(2,412)	(2,477)
Deferred revenue	3,336	1,515
Net cash provided by operating activities	1,124	3,668
Cash flows used in investing activities:
Purchase of property and equipment, net of proceeds from disposals of property and equipment	(1,164)	(2,851)
Net cash used in investing activities	(1,164)	(2,851)
Cash flows used in financing activities:
Cash distributions to stockholders	(2,740)	(7,694)
Purchase of common stock for tax withholding on vested equity awards	(892)	0
Purchase of common stock (including commissions), net of proceeds from issuance of common stock	(1,927)	4
Net cash used in financing activities	(5,559)	(7,690)
Effect of exchange rate on cash	(256)	4
Net decrease in cash and cash equivalents	(5,855)	(6,869)
Cash and cash equivalents, beginning of period	107,157	125,816
Cash and cash equivalents, end of period	101,302	118,947
Supplemental disclosure:
Income taxes paid	$ 50	$ 180