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DEBT OBLIGATIONS (Details) ¥ in Thousands, $ in Thousands |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2016 CNY (¥) | Oct. 28, 2016 USD ($) | Dec. 31, 2016 CNY (¥) | Dec. 31, 2016 USD ($) | Dec. 31, 2016 USD ($) | Jan. 08, 2016 USD ($) | Jan. 07, 2016 USD ($) | Dec. 31, 2015 USD ($)
Debt Obligations |  |  |  |  |  |  |  |
Current borrowings |  |  |  |  | $ 936 |  |  | $ 9,860
Long-term debt |  |  |  |  | 70,483 |  |  | 57,518
Unamortized debt issuance costs |  |  |  |  | (720) |  |  | (1,388)
Deferred financing costs |  |  |  | $ 745 |  |  |  |
Write-off of debt issue costs |  |  |  | $ 1,052 |  |  |  |
Senior Credit Facilities |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Debt instrument term |  |  | 5 years | 5 years |  |  |  |
Deferred financing costs |  |  |  | $ 745 |  |  |  |
Deferred financing costs net of accumulated amortization |  |  |  |  | 720 |  |  |
Senior Credit Facilities | Base Rate | Minimum |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Applicable margin (as a percent) |  |  | 0.25% | 0.25% |  |  |  |
Senior Credit Facilities | Base Rate | Maximum |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Applicable margin (as a percent) |  |  | 2.00% | 2.00% |  |  |  |
Senior Credit Facilities | Eurocurrency Rate | Minimum |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Applicable margin (as a percent) |  |  | 1.25% | 1.25% |  |  |  |
Senior Credit Facilities | Eurocurrency Rate | Maximum |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Applicable margin (as a percent) |  |  | 3.00% | 3.00% |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  | $ 71,203 |  |  |
Effective rate (as a percent) | 2.30% |  | 2.30% |  | 2.30% |  |  |
Commitment fees on unused portion of the Revolving credit facility ( as a percent) |  |  | 0.175% | 0.175% |  |  |  |
Minimum interest expense coverage ratio | 3.0 |  | 3.0 |  | 3.0 |  |  |
Increase in consolidated leverage ratio | 0.5 |  | 0.5 |  | 0.5 |  |  |
Maximum borrowing capacity |  | $ 125,000 |  |  | $ 30,000 | $ 30,000 | $ 15,000 |
Debt instrument term |  |  | 5 years | 5 years |  |  |  |
Revolving Credit Facility | Minimum |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Commitment fees on unused portion of the Revolving credit facility ( as a percent) |  |  | 0.10% | 0.10% |  |  |  |
Revolving Credit Facility | Maximum |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Commitment fees on unused portion of the Revolving credit facility ( as a percent) |  |  | 0.25% | 0.25% |  |  |  |
Revolving Credit Facility | LIBOR |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Applicable margin (as a percent) | 1.75% |  |  |  |  |  |  |
Revolving Credit Facility | LIBOR | Minimum |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Applicable margin (as a percent) |  | 1.00% |  |  |  |  |  |
Revolving Credit Facility | LIBOR | Maximum |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Applicable margin (as a percent) |  | 2.25% |  |  |  |  |  |
Revolving Credit Facility | Prime Rate |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Applicable margin (as a percent) | 0.75% |  |  |  |  |  |  |
Revolving Credit Facility | Prime Rate | Minimum |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Applicable margin (as a percent) |  | 0.00% |  |  |  |  |  |
Revolving Credit Facility | Prime Rate | Maximum |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Applicable margin (as a percent) |  | 1.25% |  |  |  |  |  |
Term Loan |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Current borrowings |  |  |  |  |  |  |  | 8,219
Long-term debt |  |  |  |  |  |  |  | 28,906
Maximum borrowing capacity |  | $ 50,000 |  |  | 50,000 |  |  |
Debt instrument term |  | 5 years | 5 years | 5 years |  |  |  |
China Credit Facility |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Current borrowings |  |  |  |  | $ 936 |  |  | 1,641
Interest rate at period end (as a percent) | 6.40% |  | 6.40% |  | 6.40% |  |  |
Maximum borrowing capacity | ¥ 10,000 |  | ¥ 10,000 |  | $ 1,440 |  |  |
Average outstanding borrowings |  |  | 10,150 | $ 1,500 |  |  |  |
Available borrowing capacity | ¥ 3,500 |  | ¥ 3,500 |  | $ 505 |  |  |
Subordinated Notes |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  | $ 30,000
Interest rate (as a percent) | 14.50% |  | 14.50% |  | 14.50% |  |  | 14.50%
Interest rate payable in cash (as a percent) | 13.00% |  | 13.00% |  | 13.00% |  |  | 13.00%
Interest rate payable in-kind (as a percent) | 1.50% |  | 1.50% |  | 1.50% |  |  | 1.50%
Principal amount of debt borrowed |  |  |  |  | $ 30,000 |  |  |
Percentage of principal amount of notes that may prepay |  |  | 100.00% | 100.00% |  |  |  |
Prior Credit Agreement, revolving credit |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Deferred financing costs |  |  |  | $ 2,377 |  |  |  |
Accumulated amortization of deferred financing costs |  | $ 1,325 |  |  |  |  |  |
Write-off of debt issue costs |  |  |  | $ 1,052 |  |  |  |
International Revolving Credit |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  | $ 25,000 | $ 10,000 |
Quarter ending through March 31, 2017 | Revolving Credit Facility |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Leverage ratio | 3.75 |  | 3.75 |  | 3.75 |  |  |
Quarter ending through September 30, 2017 | Revolving Credit Facility |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Leverage ratio | 3.5 |  | 3.5 |  | 3.5 |  |  |
Quarter ending through March 31, 2018 | Revolving Credit Facility |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Leverage ratio | 3.25 |  | 3.25 |  | 3.25 |  |  |
Quarter thereafter March 31, 2018 | Revolving Credit Facility |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |
Leverage ratio | 3.0 |  | 3.0 |  | 3.0 |  |  |

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