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Note 17 - Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2018
Notes Tables |
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] |
|  | Year Ended December 31, |
|  | 2018 |  |  | 2017 |  |  | 2016 |
United States |  | $ | 16,207 |  |  | $ | (9,634 | ) |  | $ | (10,959 | )
Foreign |  |  | 853 |  |  |  | 142 |  |  |  | 120 |
Total |  | $ | 17,060 |  |  | $ | (9,492 | ) |  | $ | (10,839 | )
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
|  | Year Ended December 31, |
|  | 2018 |  |  | 2017 |  |  | 2016 |
Current: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  | $ | (117 | ) |  | $ | (466 | ) |  | $ | (844 | )
State |  |  | 99 |  |  |  | 49 |  |  |  | (102 | )
Foreign |  |  | 395 |  |  |  | 12 |  |  |  | 104 |
Total current income tax expense (benefit) |  |  | 377 |  |  |  | (405 | ) |  |  | (842 | )
Deferred: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  | (2,954 | ) |  |  | (766 | ) |  |  | (2,883 | )
State |  |  | (807 | ) |  |  | 71 |  |  |  | (373 | )
Foreign |  |  | 132 |  |  |  | - |  |  |  | - |
Total deferred income tax benefit |  |  | (3,629 | ) |  |  | (695 | ) |  |  | (3,256 | )
|  | $ | (3,252 | ) |  | $ | (1,100 | ) |  | $ | (4,098 | )
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
|  | Year Ended December 31, |
|  | 2018 |  |  | 2017 |  |  | 2016 |
Income tax expense (benefit) at federal statutory rate |  | $ | 3,583 |  |  | $ | (3,322 | ) |  | $ | (3,755 | )
State benefit, net of federal income tax effect |  |  | (218 | ) |  |  | (472 | ) |  |  | (286 | )
Federal and state income tax credits |  |  | (7 | ) |  |  | 36 |  |  |  | (154 | )
Change in valuation allowance |  |  | (2,618 | ) |  |  | 1,570 |  |  |  | 585 |
Tax windfall on share-based compensation |  |  | (369 | ) |  |  | - |  |  |  | - |
Excess income tax shortfall on share-based compensation |  |  | - |  |  |  | 765 |  |  |  | - |
Bargain purchase gain |  |  | (4,228 | ) |  |  | - |  |  |  | - |
Effect of Tax Cuts and Jobs Act of 2017 |  |  | - |  |  |  | 874 |  |  |  | - |
Uncertain income tax positions |  |  | - |  |  |  | (562 | ) |  |  | (4 | )
Nondeductible expenses |  |  | 427 |  |  |  | 63 |  |  |  | 63 |
Foreign rate differential |  |  | 77 |  |  |  | - |  |  |  | - |
Nontaxable adjustment to contingent consideration |  |  | - |  |  |  | - |  |  |  | (580 | )
Other |  |  | 101 |  |  |  | (52 | ) |  |  | 33 |
Income tax benefit |  | $ | (3,252 | ) |  | $ | (1,100 | ) |  | $ | (4,098 | )
Effective income tax rate |  |  | (19.1 | )% |  |  | (11.6 | )% |  |  | (37.8 | )%
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
|  | December 31, |
|  | 2018 |  |  | 2017 |
Deferred income tax assets: |  |  |  |  |  |  |  |
Contract assets, net |  | $ | 425 |  |  | $ | - |
Accrued employee benefits |  |  | 2,157 |  |  |  | 2,806 |
Inventories |  |  | 347 |  |  |  | 296 |
Trade receivable, net |  |  | 1,040 |  |  |  | 105 |
Net operating loss carryforwards |  |  | 12,867 |  |  |  | 9,850 |
Tax credit carryforwards |  |  | 5,181 |  |  |  | 5,478 |
Other assets |  |  | - |  |  |  | 1,201 |
Other |  |  | 226 |  |  |  | 81 |
|  |  | 22,243 |  |  |  | 19,817 |
Valuation allowance |  |  | (9,433 | ) |  |  | (10,413 | )
|  |  | 12,810 |  |  |  | 9,404 |
Deferred income tax liabilities: |  |  |  |  |  |  |  |
Contract assets, net |  |  | - |  |  |  | (110 | )
Property and equipment |  |  | (11,984 | ) |  |  | (9,524 | )
Intangible assets |  |  | (310 | ) |  |  | (433 | )
Prepaid expenses |  |  | (470 | ) |  |  | (278 | )
|  |  | (12,764 | ) |  |  | (10,345 | )
Net deferred income tax assets (liabilities) |  | $ | 46 |  |  | $ | (941 | )
Amounts are presented in the Consolidated Balance Sheets as follows: |  |  |  |  |  |  |  |
Deferred income tax assets, included in Other assets |  | $ | 114 |  |  | $ | - |
Deferred income taxes |  |  | (68 | ) |  |  | (941 | )
Net deferred income tax assets (liabilities) |  | $ | 46 |  |  | $ | (941 | )
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] |
|  | Year Ended December 31, |
|  | 2018 |  |  | 2017 |  |  | 2016 |
Unrecognized income tax benefits, beginning of year |  | $ | 4,116 |  |  | $ | 4,874 |  |  | $ | 4,874 |
Decreases for lapse in statute of limitations |  |  | - |  |  |  | (520 | ) |  |  | - |
Decreases for positions taken in prior years |  |  | - |  |  |  | (238 | ) |  |  | - |
Increases for positions taken in the current year |  |  | 234 |  |  |  | - |  |  |  | - |
Unrecognized income tax benefits, end of year |  | $ | 4,350 |  |  | $ | 4,116 |  |  | $ | 4,874 |

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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