Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities:
Net income	$ 2,207	$ 3,290
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,516	1,143
Provision for bad debt	139	210
Stock-based compensation	3,428	2,462
Amortization of debt issuance costs	2	2
Deferred tax provision	274	(362)
Changes in operating assets and liabilities:
Accounts receivable	3,409	4,582
Prepaid expenses and other current assets	(752)	(714)
Other assets	14	(145)
Accounts payable	(341)	115
Income taxes payable	578	1,038
Accrued expenses and other current liabilities	41	(880)
Operating lease right-of-use assets and ;liabilities, net	(82)	(84)
Accrued compensation expenses	(949)	(874)
Contract liabilities	213	22
Other liabilities		(1)
Net cash provided by operating activities	9,697	9,804
Investing activities:
Purchases of property and equipment, and other capitalized assets	(1,636)	(1,833)
Purchases of investments and maturities of investments	(42)	500
Acquisitions of businesses, net	(5,015)
Net cash used in investing activities	(6,693)	(1,333)
Financing activities:
Tax withholdings related to net share settlements	(68)	(868)
Purchase of treasury shares and related costs	(14,824)	(3,125)
Proceeds from exercise of stock options		23
Term loan principal payment	(313)	(313)
Net cash used in financing activities	(15,205)	(4,283)
Effect of exchange rate changes on cash	(7)	(10)
Net (decrease) increase in cash	(12,208)	4,178
Cash at beginning of period	52,487	34,673
Cash at end of period	40,279	38,851
Supplemental disclosure of cash flow information:
Cash paid for taxes, net	$ 70	$ 121