CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Revenue, net	$ 220,181	$ 232,915	$ 225,958
Revenue from Contract with Customer, Product and Service [Extensible Enumeration]	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember
Cost of sales	$ 38,187	$ 37,964	$ 37,973
Gross profit	181,994	194,951	187,985
Operating expenses:
Commissions and incentives	103,541	111,571	108,620
Selling, general and administrative	60,838	67,914	69,551
Total operating expenses	164,379	179,485	178,171
Operating income	17,615	15,466	9,814
Other expense:
Interest expense	(17)	(120)	(323)
Other expense, net	(366)	(685)	(261)
Total other expense	(383)	(805)	(584)
Income before income taxes	17,232	14,661	9,230
Income tax expense	(4,338)	(3,112)	(1,801)
Net income	$ 12,894	$ 11,549	$ 7,429
Net income per share:
Basic (dollars per share)	$ 0.92	$ 0.82	$ 0.53
Diluted (dollars per share)	$ 0.90	$ 0.79	$ 0.50
Weighted-average shares outstanding:
Basic (in shares)	14,070	14,105	14,055
Diluted (in shares)	14,268	14,599	14,980
Other comprehensive income, net of tax:
Foreign currency translation adjustment	$ (40)	$ 82	$ 48
Other comprehensive income, net of tax:	(40)	82	48
Comprehensive income	$ 12,854	$ 11,631	$ 7,477