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Note 2 - Business Combination (Tables) | 9 Months Ended
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Sep. 30, 2018
Notes Tables |
Schedule of Business Acquisitions, by Acquisition [Table Text Block] |
Assets |  |  |  |
Cash and cash equivalents |  | $ | 912 |
Trade and other receivables |  |  | 12,806 |
Contract assets |  |  | 11,858 |
Inventories |  |  | 9,895 |
Prepaid expenses and other |  |  | 452 |
Property and equipment |  |  | 34,709 |
Other assets |  |  | 218 |
Total assets acquired |  |  | 70,850 |
Liabilities |  |  |  |
Accounts payable |  |  | 5,520 |
Accrued liabilities |  |  | 1,894 |
Contract liabilities |  |  | 123 |
Deferred income taxes |  |  | 3,298 |
Total liabilities assumed |  |  | 10,835 |
Bargain purchase gain |  |  | (21,880 | )
Total purchase consideration |  | $ | 38,135 |
Business Acquisition, Pro Forma Information [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Net sales |  | $ | 57,250 |  |  | $ | 53,071 |  |  | $ | 142,969 |  |  | $ | 142,836 |
Net income (loss) from continuing operations |  |  | 6,822 |  |  |  | 1,229 |  |  |  | (18,059 | ) |  |  | (5,050 | )
Net income (loss) from continuing operations per basic share |  |  | 0.70 |  |  |  | 0.13 |  |  |  | (1.86 | ) |  |  | (0.53 | )
Net income (loss) from continuing operations per diluted share |  |  | 0.70 |  |  |  | 0.13 |  |  |  | (1.86 | ) |  |  | (0.53 | )

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