Consolidated Statements of Cash Flows $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Cash flows from operating activities:
Net income	$ 15,189	$ 9,836	$ 12,891
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on change in fair value of contingent consideration, net	(677)	(4,438)	(1,620)
Gain on sale of business	(12,126)	0	0
Depreciation and amortization	9,482	7,921	6,974
Non-cash compensation expense	5,595	4,310	6,314
Deferred income taxes	(1,086)	876	(313)
Changes in other operating items, net of acquired amounts:
Accounts and other receivables	(23,803)	23,092	(10,977)
Unbilled revenue	23,473	(36,868)	(1,893)
Prepaid expenses and other current assets	421	705	(2,297)
Accounts payable, accrued expenses and net change in operating leases	(4,859)	8,110	15,392
Deferred revenue	(326)	(2,094)	2,520
Contingent consideration payments in excess of fair value on acquisition date	0	0	(408)
Other	2,117	(240)	(323)
Net cash provided by operating activities	13,400	11,210	26,260
Cash flows from investing activities:
Additions to property, plant and equipment	(2,315)	(2,834)	(2,734)
Proceeds from Divestiture of Businesses	20,048	0	0
Acquisitions, net of cash acquired	850	(55,290)	(11,111)
Capitalized software development costs	(2,632)	(3,544)	(1,313)
Other investing activities	0	(86)	(295)
Net cash provided by (used in) investing activities	15,951	(61,754)	(15,453)
Cash flows from financing activities:
Proceeds from (repayment of) short-term borrowings	0	(37,577)
Proceeds from (repayment of) short-term borrowings			19,864
Proceeds from long-term debt	178,750	146,000	0
Repayments of long-term debt	(212,380)	(57,500)	(12,000)
Contingent consideration payments	0	0	(4,657)
Change in negative cash book balance	1,932	(1,278)	(2,138)
Repurchases of common stock	0	(8,522)	(3,773)
Tax withholding payments for employee stock-based compensation in exchange for shares surrendered	(278)	(416)	(1,168)
Premium paid on interest rate cap	0	0	(474)
Cash proceeds from termination of interest rate derivatives	0	544	0
Payment of debt issuance costs	(303)	(1,231)	0
Other financing activities	0	10	120
Net cash provided by (used in) financing activities	(32,279)	40,030	(4,226)
Effect of exchange rate changes on cash	(2,330)	319	685
Net change in cash	(5,258)	(10,195)	7,266
Cash at beginning of year	13,417	23,612	16,346
Cash at end of year	8,159	13,417	23,612
Cash paid during the year for:
Interest	5,831	3,741	1,841
Income taxes	4,327	4,528	6,256
Non-cash financing activities:
Accrued share repurchases	0	(529)	529
Accrued contingent consideration	$ 0	$ 905	$ 5,613