CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net (loss) income	$ (2,408,000)	$ 1,258,000
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	2,820,000	3,198,000
Amortization of right-of-use assets	635,000	695,000
Stock-based compensation expense	3,185,000	2,425,000
Deferred tax expense (benefit)	9,000	(147,000)
Loss on disposal of assets	108,000	0
Loss on foreign currency transactions	7,000	65,000
Provision for expected credit losses	82,000	325,000
Non-cash interest expense	120,000	38,000
Changes in derivative financial instruments	171,000	0
Changes in contingent consideration obligations	23,000	16,000
Changes in operating assets and liabilities:
Accounts receivable	944,000	1,187,000
Prepaid expenses, other current assets and other assets	768,000	(774,000)
Accounts payable and accrued liabilities	(638,000)	(5,009,000)
Deferred revenue	(275,000)	85,000
Net cash provided by operating activities	5,551,000	3,362,000
Cash flows from investing activities:
Purchases of property and equipment	(87,000)	(283,000)
Acquisition of business, net of cash acquired	0	(11,808,000)
Net cash used in investing activities	(87,000)	(12,091,000)
Cash flows from financing activities:
Proceeds from exercise of stock options	564,000	681,000
Repurchases of common stock	(65,000)	0
Payments of finance leases	(5,000)	(41,000)
Proceeds from revolving loan	0	7,000,000
Payments for restricted stock awards withheld for taxes	(86,000)	(89,000)
Payments of term loan	(875,000)	(7,317,000)
Net cash (used in) provided by financing activities	(467,000)	234,000
Change in cash and cash equivalents prior to effect of foreign currency exchange rate	4,997,000	(8,495,000)
Effect of foreign currency exchange rate	(128,000)	(60,000)
Net increase (decrease) in cash and cash equivalents	4,869,000	(8,555,000)
Cash and cash equivalents as of beginning of period	27,241,000	28,366,000
Cash and cash equivalents as of end of period	32,110,000	19,811,000
Supplemental disclosure of cash flow information:
Cash paid for interest	123,000	361,000
Cash paid for income taxes	$ 973,000	$ 297,000