CONSOLIDATED STATEMENTS OF OPERATIONS - (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 34,976	$ 42,504	$ 67,360	$ 80,823
Cost of sales	7,920	10,126	15,011	17,348
Gross profit	27,056	32,378	52,349	63,475
Operating expenses:
Commissions and incentives	14,137	16,898	27,245	32,496
Selling and administrative expenses	6,914	7,571	13,823	14,682
Depreciation and amortization expense	301	442	633	952
Other operating costs	4,851	5,449	9,760	10,538
Total operating expenses	26,203	30,360	51,461	58,668
Income from operations	853	2,018	888	4,807
Interest income, net	23	7	38	29
Other income (expense), net	(84)	152	1	(130)
Income before income taxes	792	2,177	927	4,706
Income tax provision	(98)	(48)	(99)	(383)
Net income	$ 694	$ 2,129	$ 828	$ 4,323
Earnings per common share:
Basic (in dollars per share)	$ 0.36	$ 1.03	$ 0.43	$ 2.09
Diluted (in dollars per share)	$ 0.34	$ 0.99	$ 0.40	$ 2.03
Weighted-average common shares outstanding:
Basic (in shares)	1,942	2,060	1,944	2,065
Diluted (in shares)	2,031	2,139	2,052	2,128