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Debt Financing (Detail) |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2014 | Dec. 31, 2016 USD ($) | Jun. 24, 2016 USD ($) | Dec. 31, 2015 USD ($) | Jun. 26, 2015 USD ($) | Jun. 26, 2015 CNY (¥) | Jun. 28, 2013 CNY (¥)
Short-term debt |  |  |  | $ 0 |  |  |
Annual capital expenditure limit |  | $ 5,000,000 |  |  |  |  |
Amount of letters of credit outstanding |  | 3,292,000 |  | 7,803,000 |  |  |
Remaining borrowing capacity |  | $ 1,708,000 |  | 7,197,000 |  |  |
Commitment fee (as a percent) |  | 0.25% |  |  |  |  |
Principal amount |  | $ 76,000 |  | 76,000 |  |  |
Amended Amount |  |  |  |  |  |  |
Maximum borrowing capacity |  | 15,000,000 |  |  |  |  |
Amount Available for Increase Upon Approval of Lender |  |  |  |  |  |  |
Maximum borrowing capacity |  | 25,000,000 |  |  |  |  |
China Facility |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  | $ 5,392,000 | ¥ 35,000,000 | ¥ 35,000,000
Amount of letters of credit outstanding |  | 22,000 |  | 57,000 |  |  |
Remaining borrowing capacity |  | $ 914,000 |  | $ 5,335,000 |  |  |
People's Bank of China Base Rate | China Facility |  |  |  |  |  |  |
Basis spread (as a percent) |  | 125.00% |  |  |  |  |
Maximum |  |  |  |  |  |  |
Basis spread (as a percent) | 300.00% |  |  |  |  |  |
China Facility |  |  |  |  |  |  |
Interest rate at period end (as a percent) |  | 6.80% |  | 7.00% |  |  |
Revolving Credit Facility | China Facility |  |  |  |  |  |  |
Principal amount |  |  | $ 936,000 |  |  |  |
Debt Instrument, Redemption, Period One | Revolving Credit Facility |  |  |  |  |  |  |
Debt Instrument, Covenant, Minimum EBITDA |  | $ 500,000 |  |  |  |  |
Debt Instrument, Redemption, Period Two | Revolving Credit Facility |  |  |  |  |  |  |
Debt Instrument, Covenant, Minimum Working Capital |  | 35,000,000 |  |  |  |  |
Debt Instrument, Covenant, Minimum EBITDA |  | $ 1,000,000 |  |  |  |  |

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