Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Operating activities
Net loss	$ (11,425)	$ (9,150)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	5,046	5,075
Deferred income taxes	392	102
Foreign currency re-measurement (gain) loss	(182)	(261)
Non-cash interest and other expense	120	129
Non-cash stock compensation expense	5,920	1,564
Loss on disposal of business	0	731
Non-cash loss on retirement of fixed assets	(18)	0
Non-cash loss on debt extinguishment	1,634	0
Changes in operating assets and liabilities, net of purchase business combinations:
Accounts receivable	4,038	1,364
Prepaids and other	846	549
Accounts payable	857	(1,509)
Accrued expenses and other liabilities	(462)	258
Deferred revenue	(1,024)	2,095
Net cash provided by operating activities	5,742	947
Investing activities
Purchase of property and equipment	(375)	(851)
Purchase of customer relationships	(55)	(408)
Purchase business combinations, net of cash acquired	(37,041)	(11,844)
Net cash used in investing activities	(37,471)	(13,103)
Financing activities
Payments on capital leases	(745)	(908)
Proceeds from notes payable, net of issuance costs	33,308	14,987
Payments on notes payable	(10,725)	(1,122)
Issuance of common stock, net of issuance costs	42,701	113
Additional consideration paid to sellers of businesses	(4,338)	(1,484)
Net cash provided by financing activities	60,201	11,586
Effect of exchange rate fluctuations on cash	190	284
Change in cash and cash equivalents	28,662	(286)
Cash and cash equivalents, beginning of period	28,758	18,473
Cash and cash equivalents, end of period	57,420	18,187
Supplemental disclosures of cash flow information:
Cash paid for interest	1,984	1,093
Cash paid for taxes	1,172	249
Noncash investing and financing activities:
Equipment acquired pursuant to capital lease obligations	165	340
Issuance of common stock in business combination	$ 0	$ 5,700