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Note 20 - Quarterly Data (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2017
Notes Tables |
Quarterly Financial Information [Table Text Block] |
|  | First Quarte r |  |  | Second Quarte r |  |  | Third Quarte r |  |  | Fourth Quarte r |  |  | Tota l |
For the Year Ended December 31, 201 7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sale s |  | $ | 29,657 |  |  | $ | 28,692 |  |  | $ | 38,804 |  |  | $ | 35,627 |  |  | $ | 132,780 |
Gross profit (1 ) |  |  | 1,165 |  |  |  | 667 |  |  |  | 1,915 |  |  |  | 2,076 |  |  |  | 5,823 |
Operating los s |  |  | (3,556 | ) |  |  | (2,904 | ) |  |  | (1,508 | ) |  |  | (1,233 | ) |  |  | (9,201 | )
Net los s |  |  | (3,868 | ) |  |  | (2,068 | ) |  |  | (2,069 | ) |  |  | (2,158 | ) |  |  | (10,163 | )
Basic and diluted loss per share : |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operation s |  | $ | (0.37 | ) |  | $ | (0.15 | ) |  | $ | (0.16 | ) |  | $ | (0.20 | ) |  | $ | (0.88 | )
Discontinued operation s |  |  | (0.03 | ) |  |  | (0.07 | ) |  |  | (0.05 | ) |  |  | (0.03 | ) |  |  | (0.18 | )
Net loss per shar e |  | $ | (0.40 | ) |  | $ | (0.22 | ) |  | $ | (0.21 | ) |  | $ | (0.23 | ) |  | $ | (1.06 | )
|  | First Quarte r |  |  | Second Quarte r |  |  | Third Quarte r |  |  | Fourth Quarte r |  |  | Tota l |
For the Year Ended December 31, 201 6 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sale s |  | $ | 29,358 |  |  | $ | 39,775 |  |  | $ | 41,075 |  |  | $ | 39,179 |  |  | $ | 149,387 |
Gross profit (loss ) |  |  | (5,750 | ) |  |  | (1,272 | ) |  |  | 2,939 |  |  |  | 3,766 |  |  |  | (317 | )
Operating income (loss) (2 ) |  |  | (10,192 | ) |  |  | (5,257 | ) |  |  | (1,253 | ) |  |  | 6,334 |  |  |  | (10,368 | )
Net income (loss ) |  |  | (9,583 | ) |  |  | (6,242 | ) |  |  | 727 |  |  |  | 5,834 |  |  |  | (9,263 | )
Basic income (loss) per share : |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operation s |  | $ | (1.01 | ) |  | $ | (0.55 | ) |  | $ | 0.15 |  |  | $ | 0.71 |  |  | $ | (0.71 | )
Discontinued operation s |  |  | 0.01 |  |  |  | (0.10 | ) |  |  | (0.07 | ) |  |  | (0.10 | ) |  |  | (0.26 | )
Net income (loss) per shar e |  | $ | (1.00 | ) |  | $ | (0.65 | ) |  | $ | 0.08 |  |  | $ | 0.61 |  |  | $ | (0.97 | )
Diluted income (loss) per share : |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operation s |  | $ | (1.01 | ) |  | $ | (0.55 | ) |  | $ | 0.15 |  |  | $ | 0.70 |  |  | $ | (0.71 | )
Discontinued operation s |  |  | 0.01 |  |  |  | (0.10 | ) |  |  | (0.07 | ) |  |  | (0.10 | ) |  |  | (0.26 | )
Net income (loss) per share assuming dilutio n |  | $ | (1.00 | ) |  | $ | (0.65 | ) |  | $ | 0.08 |  |  | $ | 0.60 |  |  | $ | (0.97 | )

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