Quarterly report pursuant to Section 13 or 15(d)

Note 2 - Revisions of Previously Issued Financial Statements (Details) - Impact on the Interim Consolidated Statement of Cash Flow

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Note 2 - Revisions of Previously Issued Financial Statements (Details) - Impact on the Interim Consolidated Statement of Cash Flow - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 28, 2015
Jun. 29, 2014
Jun. 28, 2015
Jun. 29, 2014
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Net loss $ 969 $ 87 $ 545 $ (692) [1]
Items not involving cash:        
Depreciation     1,995 1,932
Unrealized gain on derivative instruments     (471) (1,094)
Accounts payable (4)     2,222 2,291 [2]
Accrued liabilities (4)     384 (285) [2]
Cash flow provided by operations     1,965 257
Cash flow used by investing (4)     $ (1,375) (737) [2]
Scenario, Previously Reported [Member]        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Net loss   33   (1,072)
Items not involving cash:        
Depreciation       2,107
Unrealized gain on derivative instruments       (889)
Accounts payable (4) [2]       2,369
Accrued liabilities (4) [2]       (268)
Cash flow provided by operations       352
Cash flow used by investing (4) [2]       (832)
Restatement Adjustment [Member]        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Net loss   $ 54   380
Items not involving cash:        
Depreciation       (175)
Unrealized gain on derivative instruments       (205)
Accounts payable (4) [2]       (78)
Accrued liabilities (4) [2]       (17)
Cash flow provided by operations       (95)
Cash flow used by investing (4) [2]       $ 95
[1] Revised net loss and deficit to adjust for prior period errors. Refer to Note 2 for further details.
[2] The net change of $95 related to purchases of property, plant and equipment that were unpaid in cash as at June 29, 2014 and therefore reflect decreases to accounts payable and accrued liabilities, respectively and a corresponding reduction in cash used by investing.