CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 29,550	$ 35,754
Accounts receivable, net	22,644	26,861
Prepaid expenses	7,150	6,849
Other current assets	628	587
Total current assets	59,972	70,051
Non-current assets:
Property and equipment, net	7,802	8,223
Operating lease right-of-use assets	13,401	13,876
Goodwill	99,175	99,175
Deferred income tax assets, net	50,706	52,398
Other non-current assets	694	754
Total non-current assets	171,778	174,426
Total assets	231,750	244,477
Accounts Payable, Current	4,659	5,880
Current liabilities:
Accrued compensation and benefits	6,063	11,628
Deferred revenue	24,629	26,274
Operating lease liabilities	4,964	5,096
Other current liabilities	4,823	4,573
Total current liabilities	45,138	53,451
Non-current liabilities:
Asset retirement obligations	7,353	7,237
Operating lease liabilities	10,064	10,604
Other non-current liabilities	846	1,107
Total non-current liabilities	18,263	18,948
Total liabilities	63,401	72,399
Commitments and contingencies (Note 13)
Stockholders' equity:
Preferred stock	0	0
Common stock	2	2
Additional paid-in capital	99,599	99,908
Accumulated other comprehensive loss	(1,897)	(1,909)
Retained earnings	70,645	74,077
Total stockholders’ equity	168,349	172,078
Total liabilities and stockholders' equity	$ 231,750	$ 244,477