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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Current assets:    
Cash and cash equivalents $ 14,670 $ 28,729
Restricted cash 5,000  
Short-term investments 7,425 10,583
Accounts receivable, net 35,969 25,338
Current maturities of notes receivable 65 64
Prepaid expenses and other current assets 10,335 12,311
Total current assets 73,464 77,025
Property and equipment, net 57,848 71,541
Right-of-use assets 6,863  
Notes receivable, net of current maturities 1,408 1,447
Intangibles, net 377 379
Long-term deferred tax assets, net 289 293
Total assets 140,249 150,685
Current liabilities:    
Accounts payable 6,312 5,427
Accrued liabilities:    
Payroll costs and other taxes 2,849 1,034
Other 3,676 3,643
Deferred revenue 7,970 10,501
Current maturities of notes payable and finance leases 3,153 6,683
Current maturities of operating lease liabilities 1,226  
Total current liabilities 25,186 27,288
Long-term liabilities:    
Notes payable and finance leases, net of current maturities 106 6,097
Operating lease liabilities, net of current maturities 6,171  
Deferred tax liabilities, net 10 134
Other accrued liabilities 150 150
Total long-term liabilities 6,437 6,381
Operating 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, 23,305,950 and 23,018,441 shares issued, and 23,257,505 and 22,969,996 shares outstanding at September 30, 2019 and December 31, 2018, respectively 233 230
Additional paid-in capital 153,980 153,268
Retained deficit (43,903) (34,518)
Treasury stock, at cost; 48,445 shares
Accumulated other comprehensive loss, net (1,684) (1,964)
Total stockholders’ equity 108,626 117,016
Total liabilities and stockholders’ equity $ 140,249 $ 150,685