CONSOLIDATED STATEMENTS OF OPERATIONS - (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
CONSOLIDATED STATEMENTS OF OPERATIONS - (UNAUDITED) [Abstract]
Net sales	$ 43,860	$ 55,635	$ 134,956	$ 144,900
Cost of sales	8,253	10,304	25,076	29,440
Gross profit	35,607	45,331	109,880	115,460
Operating expenses:
Commissions and incentives	17,867	20,977	54,296	57,727
Selling and administrative	9,001	9,567	26,412	26,389
Depreciation and amortization	433	441	1,324	1,248
Other operating costs	6,072	6,149	18,493	19,920
Total operating expenses	33,373	37,134	100,525	105,284
Income from operations	2,234	8,197	9,355	10,176
Interest income	93	25	154	61
Other expense, net	(2,418)	(1,167)	(3,802)	(1,311)
Income (loss) before income taxes	(91)	7,055	5,707	8,926
(Provision) benefit for income taxes	159	(1,947)	(1,397)	(4,282)
Net income	$ 68	$ 5,108	$ 4,310	$ 4,644
Earnings per common share:
Basic (in dollars per share)	$ 0.03	$ 1.92	$ 1.61	$ 1.75
Diluted (in dollars per share)	$ 0.03	$ 1.89	$ 1.58	$ 1.71
Weighted-average common shares outstanding:
Basic (in shares)	2,681	2,667	2,679	2,661
Diluted (in shares)	2,721	2,701	2,727	2,701