Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock | Warrants | Additional Paid-in Capital | Retained Earnings (Deficit) | Accumulated Other Comprehensive Loss | Non- Controlling Interest | Common Class A | Common Class ACommon Stock | Common Class B | Common Class BCommon Stock | Common Class C | Common Class CCommon Stock | Warrants | WarrantsWarrants |
Common shares outstanding, beginning balance (in shares) at Dec. 31, 2017 | | | | | | | | | | | 13,819,639 | | 3,022,484 | | 1,636,341 | | |
Warrants outstanding, beginning balance (in warrants) at Dec. 31, 2017 | | | | | | | | | | | | | | | | 8,977,676 | 8,977,676 |
Stockholders' equity, beginning balance at Dec. 31, 2017 | | $ 381,080 | | $ 185 | | $ 367,041 | $ 13,265 | $ (532) | $ 1,121 | | | | | | | | |
Increase (Decrease) in Stockholders' and Members' Equity [Roll Forward] | | | | | | | | | | | | | | | | | |
Net (loss) income | | (26,591) | | | | | (26,809) | | 218 | | | | | | | | |
Dividends declared | | (2,061) | | | | | (2,061) | | | | | | | | | | |
Stock-based compensation | | 197 | | | | 197 | | | | | | | | | | | |
Issuance of restricted stock (in shares) | | | | | | | | | | | 18,037 | | | | | | |
Foreign currency exchange | | (126) | | | | | | (126) | | | | | | | | | |
Cash distributions to non-controlling interests | | (27) | | | | | (19) | | (8) | | | | | | | | |
Common shares outstanding, ending balance (in shares) at Mar. 31, 2018 | | | | | | | | | | | 13,837,676 | | 3,022,484 | | 1,636,341 | | |
Warrants outstanding, ending balance (in warrants) at Mar. 31, 2018 | | | | | | | | | | | | | | | | 8,977,676 | |
Stockholders' equity, ending balance at Mar. 31, 2018 | | 354,743 | | 185 | | 367,238 | (13,353) | (658) | 1,331 | | | | | | | | |
Common shares outstanding, beginning balance (in shares) at Dec. 31, 2017 | | | | | | | | | | | 13,819,639 | | 3,022,484 | | 1,636,341 | | |
Warrants outstanding, beginning balance (in warrants) at Dec. 31, 2017 | | | | | | | | | | | | | | | | 8,977,676 | 8,977,676 |
Stockholders' equity, beginning balance at Dec. 31, 2017 | | 381,080 | | 185 | | 367,041 | 13,265 | (532) | 1,121 | | | | | | | | |
Increase (Decrease) in Stockholders' and Members' Equity [Roll Forward] | | | | | | | | | | | | | | | | | |
Net (loss) income | [1] | (24,956) | | | | | | | | | | | | | | | |
Common shares outstanding, ending balance (in shares) at Jun. 30, 2018 | | | | | | | | | | | 14,248,526 | | 3,011,634 | | 1,636,341 | | |
Warrants outstanding, ending balance (in warrants) at Jun. 30, 2018 | | | | | | | | | | | | | | | | 8,977,676 | |
Stockholders' equity, ending balance at Jun. 30, 2018 | | 350,341 | | 185 | | 363,818 | (14,141) | 0 | 479 | | | | | | | | |
Common shares outstanding, beginning balance (in shares) at Mar. 31, 2018 | | | | | | | | | | | 13,837,676 | | 3,022,484 | | 1,636,341 | | |
Warrants outstanding, beginning balance (in warrants) at Mar. 31, 2018 | | | | | | | | | | | | | | | | 8,977,676 | |
Stockholders' equity, beginning balance at Mar. 31, 2018 | | 354,743 | | 185 | | 367,238 | (13,353) | (658) | 1,331 | | | | | | | | |
Increase (Decrease) in Stockholders' and Members' Equity [Roll Forward] | | | | | | | | | | | | | | | | | |
Net (loss) income | | 1,634 | [1] | | | | 1,335 | | 299 | | | | | | | | |
Dividends declared | | (2,123) | | | | | (2,123) | | | | | | | | | | |
Acquisitions of non-controlling interests | | (4,316) | | | | (3,671) | | | (645) | | | | | | | | |
Stock-based compensation | | 251 | | | | 251 | | | | | | | | | | | |
Conversion of common shares (in shares) | | | | | | | | | | | 10,850 | | (10,850) | | | | |
Issuance of restricted stock (in shares) | | | | | | | | | | | 400,000 | | | | | | |
Disposal of subsidiary | | 637 | | | | | (19) | 656 | | | | | | | | | |
Foreign currency exchange | | 2 | | | | | | 2 | | | | | | | | | |
Cash distributions to non-controlling interests | | (487) | | | | | 19 | | (506) | | | | | | | | |
Common shares outstanding, ending balance (in shares) at Jun. 30, 2018 | | | | | | | | | | | 14,248,526 | | 3,011,634 | | 1,636,341 | | |
Warrants outstanding, ending balance (in warrants) at Jun. 30, 2018 | | | | | | | | | | | | | | | | 8,977,676 | |
Stockholders' equity, ending balance at Jun. 30, 2018 | | 350,341 | | 185 | | 363,818 | (14,141) | 0 | 479 | | | | | | | | |
Common shares outstanding, beginning balance (in shares) at Dec. 31, 2018 | | | | | | | | | | 14,297,066 | 14,297,066 | 3,011,634 | 3,011,634 | 1,636,341 | 1,636,341 | | |
Warrants outstanding, beginning balance (in warrants) at Dec. 31, 2018 | | | | | | | | | | | | | | | | | 8,977,676 |
Stockholders' equity, beginning balance at Dec. 31, 2018 | | 341,577 | | 190 | | 365,835 | (25,735) | 0 | 1,287 | | | | | | | | |
Increase (Decrease) in Stockholders' and Members' Equity [Roll Forward] | | | | | | | | | | | | | | | | | |
Net (loss) income | | (4,790) | | | | | (5,237) | | 447 | | | | | | | | |
Dividends declared | | (2,095) | | | | | (2,095) | | | | | | | | | | |
Stock-based compensation | | 876 | | | | 876 | | | | | | | | | | | |
Issuance of restricted stock (in shares) | | | | | | | | | | | 16,778 | | | | | | |
Cash distributions to non-controlling interests | | (1,287) | | | | | | | (1,287) | | | | | | | | |
Common shares outstanding, ending balance (in shares) at Mar. 31, 2019 | | | | | | | | | | | 14,313,844 | | 3,011,634 | | 1,636,341 | | |
Warrants outstanding, ending balance (in warrants) at Mar. 31, 2019 | | | | | | | | | | | | | | | | 8,977,676 | |
Stockholders' equity, ending balance at Mar. 31, 2019 | | 333,465 | | 190 | | 366,711 | (33,883) | 0 | 447 | | | | | | | | |
Common shares outstanding, beginning balance (in shares) at Dec. 31, 2018 | | | | | | | | | | 14,297,066 | 14,297,066 | 3,011,634 | 3,011,634 | 1,636,341 | 1,636,341 | | |
Warrants outstanding, beginning balance (in warrants) at Dec. 31, 2018 | | | | | | | | | | | | | | | | | 8,977,676 |
Stockholders' equity, beginning balance at Dec. 31, 2018 | | 341,577 | | 190 | | 365,835 | (25,735) | 0 | 1,287 | | | | | | | | |
Increase (Decrease) in Stockholders' and Members' Equity [Roll Forward] | | | | | | | | | | | | | | | | | |
Net (loss) income | | 5,906 | | | | | | | | | | | | | | | |
Common shares outstanding, ending balance (in shares) at Jun. 30, 2019 | | | | | | | | | | 14,313,844 | 14,313,844 | 3,011,634 | 3,011,634 | 1,636,341 | 1,636,341 | | |
Warrants outstanding, ending balance (in warrants) at Jun. 30, 2019 | | | | | 8,977,676 | | | | | | | | | | | 8,977,676 | |
Stockholders' equity, ending balance at Jun. 30, 2019 | | 344,226 | | 190 | | 366,954 | (25,775) | 0 | 2,857 | | | | | | | | |
Common shares outstanding, beginning balance (in shares) at Mar. 31, 2019 | | | | | | | | | | | 14,313,844 | | 3,011,634 | | 1,636,341 | | |
Warrants outstanding, beginning balance (in warrants) at Mar. 31, 2019 | | | | | | | | | | | | | | | | 8,977,676 | |
Stockholders' equity, beginning balance at Mar. 31, 2019 | | 333,465 | | 190 | | 366,711 | (33,883) | 0 | 447 | | | | | | | | |
Increase (Decrease) in Stockholders' and Members' Equity [Roll Forward] | | | | | | | | | | | | | | | | | |
Net (loss) income | | 10,696 | | | | | 10,203 | | 493 | | | | | | | | |
Dividends declared | | (2,095) | | | | | (2,095) | | | | | | | | | | |
Stock-based compensation | | 673 | | | | 673 | | | | | | | | | | | |
Sale of non-controlling interest | | 1,500 | | | | (430) | | | 1,930 | | | | | | | | |
Cash distributions to non-controlling interests | | (13) | | | | | | | (13) | | | | | | | | |
Common shares outstanding, ending balance (in shares) at Jun. 30, 2019 | | | | | | | | | | 14,313,844 | 14,313,844 | 3,011,634 | 3,011,634 | 1,636,341 | 1,636,341 | | |
Warrants outstanding, ending balance (in warrants) at Jun. 30, 2019 | | | | | 8,977,676 | | | | | | | | | | | 8,977,676 | |
Stockholders' equity, ending balance at Jun. 30, 2019 | | $ 344,226 | | $ 190 | | $ 366,954 | $ (25,775) | $ 0 | $ 2,857 | | | | | | | | |
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[1] | See Note 2 to the Unaudited Consolidated Financial Statements entitled Correction of Prior Period Financial Statements | |