| Condensed Balance Sheet [Table Text Block] |
| | | | | | | | | Trade accounts receivable | | $ | 71,113 | | | $ | 72,937 | | | Other receivables | | | 1,098 | | | | 447 | | | Allowance for doubtful accounts | | | (2,292 | ) | | | (398 | ) | | Accounts receivable—net | | $ | 69,919 | | | $ | 72,986 | | | | | | | | | | | Opening | | $ | 20,405 | | | $ | 3,734 | | | Contract assets additions | | | 350,709 | | | | 205,387 | | | Contract assets invoiced | | | (344,843 | ) | | | (188,716 | ) | | Ending | | $ | 26,271 | | | $ | 20,405 | | | | | | | | | | | Raw materials | | $ | 48,067 | | | $ | 52,102 | | | Work in process | | | — | | | | — | | | Finished goods (1) | | | — | | | | 418 | | | Parts and other | | | 586 | | | | 896 | | | Provision for obsolescence (2) | | | (827 | ) | | | (213 | ) | | Inventories | | $ | 47,826 | | | $ | 53,203 | | | | | | | | | | | Cost: | | | | | | | | | | Land | | $ | 1,648 | | | $ | 1,648 | | | Buildings (b) | | | 18,985 | | | | 18,985 | | | Machinery and equipment (a) (e) | | | 42,732 | | | | 40,083 | | | Office furniture and equipment (c) (e) | | | 1,005 | | | | 845 | | | Computer hardware and software (d)(e) | | | 3,979 | | | | 3,945 | | | Leasehold improvements (e) | | | 4,265 | | | | 3,863 | | | | | | 72,614 | | | | 69,368 | | | | | | | | | | | | | Less accumulated depreciation and impairment: | | | | | | | | | | Land | | | — | | | | — | | | Buildings (b) | | | (10,392 | ) | | | (9,190 | ) | | Machinery and equipment (a) (e) | | | (31,192 | ) | | | (27,093 | ) | | Office furniture and equipment (c) (e) | | | (546 | ) | | | (457 | ) | | Computer hardware and software (d) (e) | | | (3,289 | ) | | | (3,053 | ) | | Leasehold improvements (e) | | | (1,885 | ) | | | (1,415 | ) | | | | | (47,304 | ) | | | (41,208 | ) | | Property, plant and equipment—net | | $ | 25,310 | | | $ | 28,160 | | | | | | | | | | | Cost: | | | | | | | | | | Customer relationships | | $ | 12,350 | | | $ | 12,350 | | | Order backlog | | | 6,990 | | | | 6,990 | | | Trade name | | | 1,300 | | | | 1,300 | | | Non-compete agreements | | | 360 | | | | 360 | | | | | | 21,000 | | | | 21,000 | | | | | | | | | | | | | Less accumulated amortization: | | | | | | | | | | Customer relationships | | | (1,414 | ) | | | (178 | ) | | Order backlog | | | (5,333 | ) | | | (673 | ) | | Trade name | | | (1,300 | ) | | | (188 | ) | | Non-compete agreements | | | (206 | ) | | | (26 | ) | | | | | (8,253 | ) | | | (1,065 | ) | | Intangible assets—net | | $ | 12,747 | | | $ | 19,935 | | | | | | | | | | | U.S. | | $ | 3,824 | | | $ | 5,980 | | | Mexico | | | 8,923 | | | | 13,955 | | | Total | | $ | 12,747 | | | $ | 19,935 | | | | | | | | | | | U.S. | | $ | 5,449 | | | $ | 5,449 | | | Mexico | | | 12,716 | | | | 12,716 | | | Total | | $ | 18,165 | | | $ | 18,165 | | | | | | | | | | | Payroll | | $ | 5,504 | | | $ | 5,637 | | | Customer related | | | 2,185 | | | | 2,237 | | | Vendor related | | | 1,742 | | | | 2,048 | | | Professional services | | | 612 | | | | 702 | | | Rebates | | | — | | | | 236 | | | Interest | | | 860 | | | | 381 | | | Rent | | | — | | | | 428 | | | Other | | | 261 | | | | 1,371 | | | Total | | $ | 11,164 | | | $ | 13,040 | | |