Borrowings and Capital Lease Obligations (Details)
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3 Months Ended |
12 Months Ended |
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Feb. 16, 2016
USD ($)
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Jun. 23, 2015
USD ($)
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May 05, 2018
USD ($)
facility
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Feb. 03, 2018
USD ($)
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| Borrowings and capital lease obligations |
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| Mortgage debt, maturing monthly through January 2026 |
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$ 20,178,000
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$ 20,323,000
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| Capital lease obligations |
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17,551,000
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18,589,000
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| Other |
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2,851,000
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3,129,000
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| Total debt and capital lease obligations |
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40,580,000
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42,041,000
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| Less current installments |
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3,363,000
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2,845,000
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| Long-term debt and capital lease obligations |
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37,217,000
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39,196,000
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| Mortgage Debt |
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| Mortgage debt, maturing monthly through January 2026 |
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20,178,000
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20,323,000
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| Capital Lease |
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| Capital lease obligations |
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$ 17,551,000
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18,589,000
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| Interest rate swap | Derivatives designated as hedging instruments | Cash flow hedges |
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| Borrowings and capital lease obligations |
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| Fixed rate of interest rate swap derivative (as a percent) |
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3.06%
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| Europe | Foreign line of credit |
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| Credit Facilities |
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| Current borrowing capacity |
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$ 66,600,000
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| Credit Facility, outstanding amount |
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$ 0
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| Number of credit facilities subject to minimum net equity requirement | facility |
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1
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| Maximum borrowing capacity of the credit facility which is subject to a minimum net equity requirement |
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$ 41,900,000
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| Europe | Foreign line of credit | Minimum |
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| Credit Facilities |
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| Interest rate (as a percent) |
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0.50%
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| Europe | Foreign line of credit | Maximum |
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| Credit Facilities |
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| Interest rate (as a percent) |
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4.60%
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| Europe | Documentary letters of credit | Foreign line of credit |
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| Credit Facilities |
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| Letters of credit outstanding |
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$ 0
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| Mortgage debt | Building | U.S. |
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| Borrowings and capital lease obligations |
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| Mortgage debt, maturing monthly through January 2026 |
$ 21,500,000.0
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20,178,000
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20,323,000
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| Mortgage Debt |
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| Debt maturity period (in years) |
10 years
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| Mortgage debt, maturing monthly through January 2026 |
$ 21,500,000.0
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20,178,000
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20,323,000
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| Debt amortization period (in years) |
25 years
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| Debt issuance costs |
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$ 100,000
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100,000
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| Mortgage debt | Building | U.S. | LIBOR |
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| Borrowings and capital lease obligations |
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| Interest rate margin (as a percent) |
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1.50%
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| Mortgage debt | Building | U.S. | Interest rate swap |
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| Mortgage Debt |
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| Fair value of cash flow hedge interest rate swap asset |
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$ 1,522,000
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1,460,000
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| Mortgage debt | Building | U.S. | Interest rate swap | Derivatives designated as hedging instruments | Cash flow hedges |
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| Borrowings and capital lease obligations |
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| Fixed rate of interest rate swap derivative (as a percent) |
3.06%
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3.06%
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| Capital lease | Equipment | Netherlands |
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| Borrowings and capital lease obligations |
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| Capital lease obligations |
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$ 16,300,000
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17,300,000
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| Capital Lease |
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| Capital lease obligations incurred |
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$ 17,000,000
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| Effective interest rate on capital lease obligations |
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6.00%
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6.00%
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| Capital lease obligations |
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$ 16,300,000
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$ 17,300,000
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| Capital lease | Computer hardware and software |
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| Borrowings and capital lease obligations |
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| Capital lease obligations |
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1,300,000
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1,300,000
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| Capital Lease |
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| Capital lease obligations |
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1,300,000
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$ 1,300,000
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| Credit Facility |
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| Credit Facilities |
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| Credit Facility, outstanding amount |
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$ 0
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| Percentage of borrowings exceeding borrowing base that require the Company to comply with a fixed charge coverage ratio on a trailing four-quarter basis |
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80.00%
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| Credit Facility | Revolving Credit Facility |
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| Mortgage Debt |
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| Debt maturity period (in years) |
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5 years
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| Credit Facilities |
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| Maximum borrowing capacity |
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$ 150,000,000
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$ 150,000,000
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| Current borrowing capacity |
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97,000,000
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| Credit Facility | Accordion feature |
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| Credit Facilities |
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| Maximum borrowing capacity |
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150,000,000
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$ 150,000,000
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| Credit Facility | U.S. line of credit | Base rate | Minimum |
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| Borrowings and capital lease obligations |
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| Interest rate margin (as a percent) |
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0.25%
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| Credit Facility | U.S. line of credit | Base rate | Maximum |
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| Borrowings and capital lease obligations |
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| Interest rate margin (as a percent) |
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0.75%
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| Credit Facility | U.S. line of credit | LIBOR |
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| Credit Facilities |
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| Interest rate margin added to respective base rate |
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1.00%
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| Credit Facility | U.S. line of credit | LIBOR | Minimum |
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| Borrowings and capital lease obligations |
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| Interest rate margin (as a percent) |
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1.25%
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| Credit Facility | U.S. line of credit | LIBOR | Maximum |
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| Borrowings and capital lease obligations |
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| Interest rate margin (as a percent) |
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1.75%
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| Credit Facility | U.S. line of credit | Federal funds rate |
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| Credit Facilities |
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| Interest rate margin added to respective base rate |
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0.50%
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| Credit Facility | Standby letters of credit |
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| Credit Facilities |
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| Letters of credit outstanding |
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$ 1,000,000
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| Credit Facility | Documentary letters of credit |
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| Credit Facilities |
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| Letters of credit outstanding |
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0
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| Credit Facility | Canada | Foreign line of credit |
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| Credit Facilities |
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| Maximum borrowing capacity |
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$ 50,000,000
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$ 50,000,000
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| Credit Facility | Canada | Foreign line of credit | Prime rate | Minimum |
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| Borrowings and capital lease obligations |
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| Interest rate margin (as a percent) |
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0.25%
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| Credit Facility | Canada | Foreign line of credit | Prime rate | Maximum |
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| Borrowings and capital lease obligations |
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| Interest rate margin (as a percent) |
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0.75%
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| Credit Facility | Canada | Foreign line of credit | Canadian BA rate |
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| Credit Facilities |
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| Interest rate margin added to respective base rate |
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1.00%
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| Credit Facility | Canada | Foreign line of credit | Canadian BA rate | Minimum |
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| Borrowings and capital lease obligations |
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| Interest rate margin (as a percent) |
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1.25%
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| Credit Facility | Canada | Foreign line of credit | Canadian BA rate | Maximum |
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| Borrowings and capital lease obligations |
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| Interest rate margin (as a percent) |
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1.75%
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| Credit Facility | Canada | Foreign line of credit | Bank of Canada overnight rate |
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| Credit Facilities |
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| Interest rate margin added to respective base rate |
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0.50%
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