Consolidated Statements of Cash Flows - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Operating activities
Net income	$ 11,751,000	$ 4,294,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	9,955,000	11,758,000
Stock-based compensation	5,265,000	5,031,000
Equity investment loss	2,000	1,464,000
Deferred income taxes	1,974,000	599,000
Loss on disposals of long-lived assets	742,000	524,000
Impairment of goodwill	0	7,336,000
Other	24,000	83,000
Changes in operating assets and liabilities:
Accounts receivable, net of allowance for bad debt	1,765,000	6,117,000
Prepaid expenses	(807,000)	(832,000)
Income tax receivable/payable	(743,000)	(4,751,000)
Operating leases, net	(26,000)	361,000
Other assets	(427,000)	303,000
Accounts payable	943,000	(5,145,000)
Accrued compensation and benefits	3,031,000	(1,909,000)
Accrued liabilities	3,219,000	4,405,000
Deferred revenue and student deposits	8,065,000	2,298,000
Net cash provided by operating activities	44,733,000	31,936,000
Investing activities
Capital expenditures	(4,171,000)	(4,151,000)
Proceeds from the sale of real property	412,000	0
Net cash used in investing activities	(3,759,000)	(4,151,000)
Financing activities
Cash paid for repurchase of common stock	(15,705,000)	(29,813,000)
Net cash used in financing activities	(15,705,000)	(29,813,000)
Net increase (decrease) in cash, cash equivalents, and restricted cash	25,269,000	(2,028,000)
Cash, cash equivalents, and restricted cash at beginning of period	202,740,000	212,131,000
Cash, cash equivalents, and restricted cash at end of period	228,009,000	210,103,000
Supplemental disclosure of cash flow information
Income taxes paid	$ 3,062,000	$ 5,749,000