Income Taxes - Deferred (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
Deferred tax assets:
Net operating loss carryforward	$ 4,923	$ 5,047
Reserves	4,769	4,618
Accrued expenses	3,492	3,156
Stock compensation expense	5,992	8,293
Other assets	1,524	1,289
Deferred rent	1,056	1,502
Deferred revenue	461	673
Federal tax credits	20	20
State tax credits	363	431
Total deferred tax assets	22,600	25,029
Deferred tax liabilities:
Capitalized curriculum development	(10,143)	(9,890)
Capitalized software and website development costs	(12,659)	(13,734)
Property and equipment	(5,166)	(2,573)
Returned materials	(2,643)	(2,452)
Purchased intangibles	(4,110)	(4,498)
Total deferred tax liabilities	(34,721)	(33,147)
Net deferred tax liability before valuation allowance	(12,121)	(8,118)
Valuation Allowance	(4,549)	(4,459)
Net deferred tax liability	(16,670)	(12,577)
Reported as:
Long-term deferred tax liabilities	$ (16,670)	$ (12,577)