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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Current assets:    
Cash $ 46,563 $ 3,896
Restricted cash 971 0
Accounts receivable 5,339 2,020
Unbilled receivable 404 4,021
Inventories 10,344 5,025
Prepaid expenses and other current assets 1,403 1,524
Total current assets 65,024 16,486
Inventories, long-term 3,155 7,117
Property, plant and equipment, net 104,096 108,928
Deferred financing costs, net 1,154  
Other assets 23 33
Total assets 173,452 132,564
Current liabilities:    
Accounts payable 1,663 1,170
Accrued and other expenses 2,430 3,778
Deferred revenue 1,615 7,133
Income taxes payable 7,058  
Current portion of equipment financing obligations 674 409
Current portion of notes payable 282 1,369
Redeemable Series A preferred stock   34,708
Total current liabilities 13,722 48,567
Revolving credit facility, net   62,768
Equipment financing obligations, net of current portion 572 1,246
Notes payable, net of current portion 288 569
Deferred tax liabilities, long-term, net 15,044 14,505
Asset retirement obligation 1,384 1,180
Total liabilities 31,010 128,835
Commitments and contingencies (Note 21)
Stockholders’ equity    
Common stock, $0.001 par value, 350,000,000 shares authorized; 38,884,068 issued and 38,816,474 outstanding at December 31, 2016; 22,139,480 issued and 22,114,620 outstanding at December 31, 2015 39 22
Treasury stock, at cost, 67,594 shares and 24,860 shares respectively at December 31, 2016 and 2015, respectively 539 123
Additional paid-in capital 132,879 4,146
Retained earnings (Accumulated deficit) 10,063 (316)
Total stockholders’ equity 142,442 3,729
Total liabilities and stockholders’ equity $ 173,452 $ 132,564