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CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 51,167 | $ 34,828
Contracts receivable, net | 20,169 | 47,060
Contracts in progress | 26,829 | 12,822
Prepaid expenses and other | 3,222 | 3,418
Inventory | 11,973 | 12,936
Assets held for sale | 0 | 4,805
Total current assets | 113,360 | 115,869
Property, plant and equipment, net | 206,222 | 200,384
Other assets | 2,826 | 670
Total assets | 322,408 | 316,923
Current liabilities: |  |
Accounts payable | 9,021 | 13,604
Advance billings on contracts | 3,977 | 7,081
Deferred revenue, current | 11,881 | 0
Accrued contract losses | 387 | 9,495
Accrued expenses and other liabilities | 10,032 | 7,608
Income taxes payable | 50 | 113
Total current liabilities | 35,348 | 37,901
Net deferred tax liabilities | 23,234 | 21,825
Deferred revenue, noncurrent | 489 | 0
Other liabilities | 305 | 0
Total liabilities | 59,376 | 59,726
Shareholders’ equity: |  |
Preferred stock, no par value, 5,000,000 shares authorized, no shares issued and outstanding |  |
Common stock, no par value, 20,000,000 shares authorized, 14,695,020 issued and outstanding at December 31, 2016 and 14,580,216 at December 31, 2015, respectively | 10,641 | 10,352
Additional paid-in capital | 98,813 | 96,194
Retained earnings | 153,578 | 150,651
Total shareholders’ equity | 263,032 | 257,197
Total liabilities and shareholders’ equity | $ 322,408 | $ 316,923

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