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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Current assets:    
Cash and cash equivalents $ 11,158 $ 10,772
Restricted cash   5,000
Short-term investments 265 265
Accounts receivable, net 4,424 12,735
Prepaid expenses and other current assets 7,079 8,654
Total current assets 22,926 37,426
Property and equipment, net 15,082 16,508
Right-of-use assets 2,620 3,208
Intangibles, net 365 377
Total assets 40,993 57,519
Current liabilities:    
Accounts payable 3,400 3,883
Accrued liabilities:    
Payroll costs and other taxes 2,249 3,415
Other 759 709
Deferred revenue 5,709 11,829
Current maturities of notes payable and finance leases 740 1,380
Current maturities of operating lease liabilities 1,064 1,202
Total current liabilities 13,921 22,418
Long-term liabilities:    
Notes payable and finance leases, net of current maturities 1,408 1,289
Operating lease liabilities, net of current maturities 1,862 2,363
Deferred tax liabilities, net 15 15
Total long-term liabilities 3,285 3,667
Commitments and contingencies
Stockholders' equity:    
Preferred stock-par value $1.00 per share; 4,000,000 shares authorized, none outstanding
Common stock-par value $0.01 per share; 35,000,000 shares authorized, 30,906,777 and 30,812,329 shares issued and outstanding at June 30, 2024 and December 31, 2023, respectively 309 308
Additional paid-in capital 156,860 156,678
Accumulated deficit (131,200) (123,640)
Accumulated other comprehensive loss, net (2,182) (1,912)
Total stockholders' equity 23,787 31,434
Total liabilities and stockholders' equity $ 40,993 $ 57,519