CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net income	$ 680	$ 943
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation expense	161	146
Depreciation and amortization	221	313
Deferred income tax provision	12	21
Foreign currency transaction (gains) losses	(9)	8
Changes in operating assets and liabilities:
Accounts receivable	2,297	1,282
Inventories	(2)	(254)
Prepaid income taxes	161	0
Other current and long term assets	(46)	(169)
Accounts payable	(740)	(1,324)
Accrued liabilities and other liabilities	(872)	(195)
Net cash provided by operating activities	1,863	771
Cash flows from investing activities:
Capital expenditures	(298)	(234)
Payments to Acquire Software	(10)	0
Net cash used in investing activities	(308)	(234)
Cash flows from financing activities:
Payment of dividends on common stock	(673)	(587)
Purchases of common stock for treasury	(1,562)	0
Proceeds from stock option exercises	94	0
Incremental tax benefits on stock options exercised	(246)	(18)
Net cash used in financing activities	(2,387)	(605)
Effect of exchange rate changes on cash and cash equivalents	(6)	(6)
Decrease in cash and cash equivalents	(838)	(74)
Cash and cash equivalents, beginning of period	5,507	2,503
Cash and cash equivalents, end of period	4,669	2,429
Supplemental schedule of non-cash investing activities:
Capital expenditures funded by accounts payable	$ 122	$ 98