| Condensed Balance Sheet [Table Text Block] |
| | | | | | | | | Trade accounts receivable | | $ | 31,669 | | | $ | 28,793 | | | Other receivables | | | 410 | | | | 317 | | | Allowance for doubtful accounts | | | (46 | ) | | | — | | | Total | | $ | 32,125 | | | $ | 29,110 | | | | | | | | | | | Opening – January 1, 2018 | | $ | 3,734 | | | $ | — | | | Contract assets addition | | | 12,277 | | | | | | | Contract assets invoiced | | | (9,203 | ) | | | — | | | Ending | | $ | 6,808 | | | $ | — | | | | | | | | | | | Raw materials | | $ | 23,808 | | | $ | 19,157 | | | Work in process | | | — | | | | 1,874 | | | Finished goods (1) | | | 804 | | | | 1,540 | | | Parts | | | 769 | | | | 411 | | | Provision for obsolescence | | | (167 | ) | | | (619 | ) | | Total | | $ | 25,214 | | | $ | 22,363 | | | | | | | | | | | Cost: | | | | | | | | | | Land | | $ | 1,648 | | | $ | 1,648 | | | Buildings | | | 9,903 | | | | 9,852 | | | Machinery and equipment (a) (c) | | | 33,074 | | | | 30,319 | | | Office furniture and equipment | | | 532 | | | | 534 | | | Computer hardware and software (b) | | | 3,441 | | | | 3,173 | | | Leasehold improvements | | | 2,140 | | | | 2,160 | | | | | | 50,738 | | | | 47,686 | | | Less accumulated depreciation: | | | | | | | | | | Land | | | — | | | | — | | | Buildings | | | (8,874 | ) | | | (8,619 | ) | | Machinery and equipment (a) (c) | | | (25,592 | ) | | | (24,650 | ) | | Office furniture and equipment | | | (423 | ) | | | (413 | ) | | Computer hardware and software (b) | | | (2,846 | ) | | | (2,622 | ) | | Leasehold improvements | | | (1,271 | ) | | | (1,113 | ) | | | | | (39,006 | ) | | | (37,417 | ) | | Property, plant and equipment—net | | $ | 11,732 | | | $ | 10,269 | | | | | | | | | | | Customer related | | $ | 1,477 | | | $ | 936 | | | Payroll | | | 2,724 | | | | 2,485 | | | Professional services | | | 307 | | | | 328 | | | Restructuring | | | 137 | | | | 109 | | | Vendor related | | | 696 | | | | 493 | | | Other | | | 847 | | | | 526 | | | Total | | $ | 6,188 | | | $ | 4,877 | | |