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v3.6.0.2

Merger (Details) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 11, 2015 USD ($) $ / shares shares | Dec. 31, 2015 USD ($) $ / shares shares | Dec. 31, 2014 USD ($) $ / shares shares | Dec. 31, 2016 USD ($) $ / shares shares | Dec. 31, 2015 USD ($) $ / shares shares | Sep. 30, 2014 USD ($) $ / shares shares
Common stock, par value (in dollars per share) | $ / shares |  | $ 0.01 |  | $ 0.01 | $ 0.01 |
Split-effected Common Stock (in shares) | shares |  |  |  | 1.76 |  |
Fair value of assets acquired and liabilities assumed |  |  |  |  |  |
Net deferred tax asset |  | $ 29,661,000 |  | $ 29,424,000 | $ 29,661,000 |
Common stock, shares outstanding | shares |  | 21,580,865 |  | 21,656,406 | 21,580,865 |
Accrual for uncertain tax positions and contingencies related to certain tax matters |  |  |  |  | $ 715,000 |
Revenues |  |  |  | $ 133,330,000 | $ 234,685,000 | $ 261,683,000
Pro Forma Information |  |  |  |  |  |
Shares used in calculation of earnings per share | shares |  |  | 21,400,593 |  | 21,537,480 | 21,367,677
Pro forma total revenues |  |  | $ 76,897,000 |  | $ 248,295,000 | $ 373,544,000
Pro forma net loss |  |  | $ (7,722,000) |  | $ (30,256,000) | $ (13,383,000)
Pro forma net loss per share |  |  |  |  |  |
Basic | $ / shares |  |  | $ (0.36) |  | $ (1.40) | $ (0.63)
Diluted | $ / shares |  |  | $ (0.36) |  | $ (1.40) | $ (0.63)
Legacy TGC |  |  |  |  |  |
Common stock, par value (in dollars per share) | $ / shares | $ 0.01 |  |  |  |  |
Reverse stock split ratio | 0.33 |  |  |  |  |
Split-effected Common Stock (in shares) | shares | 1.760 |  |  |  |  |
Increase in preliminary estimated amount of property and equipment |  | $ 5,055,000 |  |  |  |
Increase in preliminary estimated amount of current liability |  | 943,000 |  |  |  |
Decrease in preliminary estimated amount of current assets |  | 625,000 |  |  |  |
Decrease in preliminary estimated amount of intangible assets |  | 2,953,000 |  |  |  |
Decrease in deferred tax assets related to adjustments to preliminary estimates |  | 534,000 |  |  |  |
Increase in depreciation |  | 628,000 |  |  |  |
Decrease in amortization expense |  | $ 697,000 |  |  |  |
Fair value of assets acquired and liabilities assumed |  |  |  |  |  |
Stock consideration | $ 42,902,000 |  |  |  |  |
Interest bearing debt assumed | 12,048,000 |  |  |  |  |
Debt-free current liabilities | 13,590,000 |  |  |  |  |
Total purchase price consideration including liabilities assumed | 68,540,000 |  |  |  |  |
Current assets excluding cash and cash equivalents | 15,531,000 |  |  |  |  |
Cash and cash equivalents | 12,382,000 |  |  |  |  |
Total current assets | 27,913,000 |  |  |  |  |
Fair value of property and equipment | 33,867,000 |  |  |  |  |
Identified intangible assets | 400,000 |  |  |  |  |
Net deferred tax asset | 6,360,000 |  |  |  |  |
Total indicated value of assets | $ 68,540,000 |  |  |  |  |
Common stock, shares outstanding | shares | 7,381,476 |  |  |  |  |
Accrual for uncertain tax positions and contingencies related to certain tax matters | $ 865,000 |  |  |  |  |
Pre-tax merger-related costs |  |  |  |  | $ 3,314,000 |
Legacy TGC | Minimum |  |  |  |  |  |
Fair value of assets acquired and liabilities assumed |  |  |  |  |  |
Estimated useful lives of property and equipment | 18 months |  |  |  |  |
Legacy TGC | Maximum |  |  |  |  |  |
Fair value of assets acquired and liabilities assumed |  |  |  |  |  |
Estimated useful lives of property and equipment | 12 years |  |  |  |  |
Legacy Dawson |  |  |  |  |  |
Common stock, par value (in dollars per share) | $ / shares | $ 0.3333 |  |  |  |  |

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