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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
Sep. 30, 2016
Dec. 31, 2015
Current assets:    
Cash and cash equivalents $ 18,263,000 $ 37,009,000
Short-term investments 44,250,000 21,000,000
Accounts receivable, net 12,772,000 35,700,000
Prepaid expenses and other assets 3,977,000 6,150,000
Total current assets 79,262,000 99,859,000
Property and equipment, net 117,821,000 147,567,000
Intangibles 499,000 361,000
Total assets 197,582,000 247,787,000
Current liabilities:    
Accounts payable 3,981,000 8,401,000
Accrued liabilities:    
Payroll costs and other taxes 1,928,000 1,074,000
Other 3,781,000 4,604,000
Deferred revenue 1,760,000 6,146,000
Current maturities of notes payable and obligations under capital leases 3,928,000 8,585,000
Total current liabilities 15,378,000 28,810,000
Long-term liabilities:    
Notes payable and obligations under capital leases less current maturities 65,000 2,106,000
Deferred tax liabilities, net 1,971,000 5,319,000
Other accrued liabilities 1,992,000 1,834,000
Total long-term liabilities 4,028,000 9,259,000
Commitments and contingencies
Stockholders' equity:    
Preferred stock-par value $1.00 per share; 4,000,000 shares authorized, none outstanding 0 0
Common stock-par value $0.01 per share; 35,000,000 shares authorized, 21,680,934 and 21,629,310 shares issued, and 21,632,489 and 21,580,865 shares outstanding at September 30, 2016 and December 31, 2015 respectively 217,000 216,000
Additional paid-in capital 142,909,000 142,269,000
Retained earnings 36,452,000 69,057,000
Treasury stock, at cost; 48,445 shares at September 30, 2016 and December 31, 2015 0 0
Accumulated other comprehensive loss, net (1,402,000) (1,824,000)
Total stockholders' equity 178,176,000 209,718,000
Total liabilities and stockholders' equity $ 197,582,000 $ 247,787,000