CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 20,855	$ 35,247
Restricted cash	2,463	2,413
Accounts receivable, net of allowances	62,855	76,849
Inventories	26,371	20,981
Prepaid expenses	9,247	8,360
Contract assets	31,966	32,295
Other current assets	2,538	2,826
Total current assets	156,295	178,971
Property and equipment, net	25,586	23,684
Goodwill	32,643	32,643
Right of use assets	21,905	21,395
Deferred tax assets, net	16,118	15,859
Other long-term assets	21,364	14,901
Total assets	273,911	287,453
Current liabilities:
Accounts payable	50,081	45,904
Accrued compensation and benefits	21,526	22,602
Accrued expenses and other current liabilities	32,696	36,031
Income taxes payable	217	62
Less: current portion	9,716	9,710
Deferred revenues	62,717	76,308
Total current liabilities	176,953	190,617
Long-term debt	170,690	172,958
Long-term deferred revenues	19,734	17,842
Long-term lease liabilities	21,025	20,470
Other long-term liabilities	4,245	4,348
Total liabilities	392,647	406,235
Commitments and contingencies (Note 7)
Stockholders' deficit:
Common stock, par value $0.01; authorized: 100,000 shares; issued: 46,763 shares at March 31, 2023 and 46,551 shares at December 31, 2022; outstanding: 43,837 shares at March 31, 2023 and 43,771 shares at December 31, 2022	464	462
Treasury stock	(78,353)	(77,933)
Additional paid-in capital	1,036,538	1,036,287
Accumulated deficit	(1,072,099)	(1,071,718)
Accumulated other comprehensive loss	(5,286)	(5,880)
Total stockholders' deficit	(118,736)	(118,782)
Total liabilities and stockholders' deficit	$ 273,911	$ 287,453