Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2022

Accounting Policies [Abstract]

Summary of Stock-based Compensation Cost Charged Against Income

Stock-based compensation expense for the three months ended March 31, 2022 and 2021 was as follows (in thousands):

	Three Months Ended March 31,
	2022		2021
	(Unaudited)
Instructional costs and services	$	459	$	466
Selling and promotional	296		309
General and administrative	1,601		1,405
Total stock-based compensation expense	$	2,356	$	2,180