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Note 8 - Accrued Expenses (Tables) | 9 Months Ended
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Sep. 30, 2019
Notes Tables |
Schedule of Accrued Liabilities [Table Text Block] |
|  | September 30, |  |  | December 31, |
|  | 2019 |  |  | 2018 |
Sales commissions |  | $ | 2,503 |  |  | $ | 2,609 |
Subcontracting labor |  |  | 914 |  |  |  | 1,550 |
Salaries, bonuses and related benefits |  |  | 15,808 |  |  |  | 18,275 |
Warranty accrual |  |  | 1,577 |  |  |  | 1,078 |
Other |  |  | 10,267 |  |  |  | 8,778 |
|  | $ | 31,069 |  |  | $ | 32,290 |
Restructuring and Related Costs [Table Text Block] |
|  |  |  |  |  | Nine Months Ended |  |  |  |  |
|  |  |  |  |  | September 30, 2019 |  |  |  |  |
|  | Liability at |  |  |  |  |  |  | Cash Payments |  |  | Liability at |
|  | December 31, |  |  | New |  |  | and Other |  |  | September 30, |
|  | 2018 |  |  | Charges |  |  | Settlements |  |  | 2019 |
Severance costs |  | $ | - |  |  | $ | 663 |  |  | $ | (663 | ) |  | $ | - |
Other restructuring costs |  |  | - |  |  |  | 988 |  |  |  | (943 | ) |  |  | 45 |
Total |  | $ | - |  |  | $ | 1,651 |  |  | $ | (1,606 | ) |  | $ | 45 |

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