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CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Revenue	$ 70,622	$ 72,345
Cost of sales	17,730	19,151
Gross profit	52,892	53,194
Selling, general, and administrative	44,283	46,926
Income from operations	8,609	6,268
Other income (expense)
Interest and dividend income, net	63	115
Other income (expense)	39	(24)
Nonoperating income (expense)	102	91
Income from operations before income taxes	8,711	6,359
Provision for income taxes	2,566	2,099
Net income	$ 6,145	$ 4,260
Basic earnings (loss) per share
Earnings per share - basic	$ 0.52	$ 0.36
Diluted earnings (loss) per share
Earnings per share - diluted	$ 0.51	$ 0.36
Weighted average shares outstanding -
Basic	11,901	11,862
Diluted	12,009	11,922
Cash dividends declared per share	$ 0.32	$ 0.25

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