CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 30,866	$ 35,754
Accounts receivable, net	25,467	26,861
Prepaid expenses	7,371	6,849
Other current assets	841	587
Total current assets	64,545	70,051
Non-current assets:
Property and equipment, net	7,869	8,223
Operating lease right-of-use assets	12,713	13,876
Goodwill	99,175	99,175
Deferred income tax assets, net	48,992	52,398
Other non-current assets	630	754
Total non-current assets	169,379	174,426
Total assets	233,924	244,477
Current liabilities:
Accounts payable	6,768	5,880
Accrued compensation and benefits	8,528	11,628
Deferred revenue	23,984	27,255
Operating lease liabilities	4,693	5,096
Other current liabilities	5,352	4,573
Total current liabilities	49,325	54,432
Non-current liabilities:
Asset retirement obligations	7,455	7,237
Operating lease liabilities	9,520	10,604
Other non-current liabilities	1,013	1,107
Total non-current liabilities	17,988	18,948
Total liabilities	67,313	73,380
Commitments and contingencies (Note 13)
Stockholders' equity:
Preferred stock	0	0
Common stock	2	2
Additional paid-in capital	100,612	99,908
Accumulated other comprehensive loss	(1,862)	(1,909)
Retained earnings	67,859	73,096
Total stockholders’ equity	166,611	171,097
Total liabilities and stockholders' equity	$ 233,924	$ 244,477