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Capital Stock - Additional Information (Detail) (USD $) | 1 Months Ended |  |  | 1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Aug. 31, 2013 | Mar. 29, 2014 Class | Mar. 30, 2013 | Aug. 31, 2013 Montrovest BV [Member] | Aug. 31, 2013 Class A Common Stock [Member] | Mar. 29, 2014 Class A Common Stock [Member] | Aug. 31, 2013 Class A Common Stock [Member] Montrovest BV [Member] | Mar. 29, 2014 Class B Common Stock [Member]
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Common stock voting rights per share |  |  |  |  |  | $ 1 |  | $ 10
Preferred shares par value |  |  |  |  |  |  |  |
Number of classes of common stock outstanding |  | 2 |  |  |  |  |  |
Debentures converted to voting shares, value | $ 5,000,000 |  |  |  | $ 5,000,000 |  | $ 4,800,000 |
Net proceeds after expense on debenture conversion |  |  |  |  |  |  | $ 4,861,000 |
Annual interest rate of debentures sold under private placement | 6.00% |  |  |  | 6.00% |  |  |
Debenture conversion price | $ 1.30 |  |  |  | $ 1.70 |  |  |
Debentures converted to voting shares |  |  |  | 2,828,634 | 2,941,085 |  | 2,828,634 |

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