CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 159,762	$ 151,407
Cost of sales	34,149	35,505
Gross profit	125,613	115,902
Operating expenses:
Commissions and incentives	63,784	61,349
Selling and administrative expenses	29,427	27,845
Depreciation and amortization	1,719	1,990
Other operating costs	21,634	20,227
Total operating expenses	116,564	111,411
Income from operations	9,049	4,491
Interest income	66	83
Other (expense) income, net	(223)	1,151
Income before income taxes	8,892	5,725
Income tax (provision) benefit	950	536
Net income	$ 9,842	$ 6,261
Income per common share:
Basic (in dollars per share)	$ 4.95	$ 2.80
Diluted (in dollars per share)	$ 4.71	$ 2.77
Weighted-average common shares outstanding:
Basic (in shares)	1,990	2,235
Diluted (in shares)	2,088	2,264