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Subsequent Event - Additional Information (Detail) (Subsequent Event [Member], USD $) |  |  |  |  | 1 Months Ended |
--- | --- | --- | --- | --- | --- | ---
May 06, 2013 | Jun. 24, 2015 Kewaunee Labway Asia Pte. Ltd. [Member] | Jun. 24, 2014 Kewaunee Labway Asia Pte. Ltd. [Member] | Jun. 24, 2013 Kewaunee Labway Asia Pte. Ltd. [Member] | May 06, 2013 Line of Credit [Member] | Sep. 01, 2017 Term Loan A [Member] | Aug. 01, 2017 Term Loan A [Member] | May 06, 2013 Term Loan A [Member] | May 01, 2020 Term Loan B [Member] | May 06, 2013 Term Loan B [Member] | Nov. 03, 2014 Term Loan B [Member]
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |
Loan agreement |  |  |  |  | $ 20,000,000 |  |  | $ 3,450,000 |  | $ 1,550,000 |
Loan agreement, Maturity date |  |  |  |  | May 01, 2016 |  |  | May 01, 2020 |  | May 01, 2020 |
Letters of credit | 4,700,000 |  |  |  |  |  |  |  |  |  |
Interest rate description |  |  |  |  | Indebtedness under the Line of Credit bears interest at a variable rate per annum equal to Daily One Month LIBOR plus 1.5% per annum |  |  |  |  |  |
Percentage of Interest over one month LIBOR |  |  |  |  | 1.50% |  |  |  |  | 1.575% |
Term loan, Payment terms |  |  |  |  |  |  |  | Payments are due under Term Loan A in consecutive equal monthly principal payments in the amount of $17,000 until August 1, 2017, and then in consecutive equal monthly principal payments in the amount of $79,000 each, commencing on September 1, 2017 and continuing on the first business day of each month thereafter until May 1, 2020, and at that time, all principal, accrued unpaid interest and other charges outstanding under Term Loan A shall be due and payable in full |  | Payments are due under the Term Loan B in consecutive equal monthly principal payments in the amount of $18,000 until May 1, 2020, and at that time, all principal |
Periodic payments |  |  |  |  |  | 79,000 | 17,000 |  | 18,000 |  |
Fixed rate percentage |  |  |  |  |  |  | 4.37% | 4.875% |  |  | 3.07%
Minority ownership percentage |  |  |  | 49.00% |  |  |  |  |  |  |
Business Acquisition, Purchase price |  |  |  | 3,550,000 |  |  |  |  |  |  |
Minority ownership share of the accumulated undistributed earnings of the Subsidiary reported as noncontrolling interest |  |  |  | 1,800,000 |  |  |  |  |  |  |
Payments under agreement |  | $ 887,500 | $ 887,500 | $ 1,775,000 |  |  |  |  |  |  |

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