Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 3,703	$ 3,771
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,302	2,089
Deferred income taxes	(152)	49
Stock-based compensation	436	446
Changes in assets and liabilities:
Accounts receivable	(3,598)	423
Prepaid expenses and other current assets	(147)	(272)
Accounts payable	394	(263)
Accrued expenses	1,069	874
Net cash provided by operating activities	4,007	7,117
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of equipment and leasehold improvements	(775)	(411)
Cost of internally developed software	(268)	(509)
Other assets	(96)	(26)
Net cash used in investing activities	(1,139)	(946)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of stock, net of tax withholding	(93)	(165)
Payments of equipment financing	(717)	(1,911)
Cash dividends paid	(2,806)	(2,464)
Net cash used in financing activities	(3,616)	(4,540)
Effect of exchange rate changes on cash and cash equivalents	(1,401)	35
Net increase (decrease) in cash and cash equivalents	(2,149)	1,666
Cash and cash equivalents, beginning of period	8,165	3,938
Cash and cash equivalents, end of period	6,016	5,604
Supplemental Disclosures of Cash Flow Information:
Cash paid for income taxes	2,289	1,904
Cash paid for interest	83	53
Purchases of equipment through accounts payable and accrued liabilities	$ 65	$ 41