CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 157,728	$ 173,558
Cost of sales	31,550	34,476
Gross profit	126,178	139,082
Operating expenses:
Commissions and incentives	64,254	73,514
Selling and administrative expenses	30,824	34,156
Depreciation and amortization	2,088	2,064
Other operating costs	22,579	29,438
Total operating expenses	119,745	139,172
Income (loss) from operations	6,433	(90)
Interest income (expense)	(16)	288
Other income (expense), net	(681)	291
Income before income taxes	5,736	489
Income tax provision	(2,447)	(4,375)
Net income (loss)	$ 3,289	$ (3,886)
Income (loss) per common share:
Basic (in dollars per share)	$ 1.38	$ (1.53)
Diluted (in dollars per share)	$ 1.35	$ (1.53)
Weighted-average common shares outstanding:
Basic (in shares)	2,391	2,541
Diluted (in shares)	2,441	2,541