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Note 14 - Commitments and Contingencies | 12 Months Ended
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Dec. 31, 2017
Notes to Financial Statements |
Commitments and Contingencies Disclosure [Text Block] |
| ( 14 ) | Commitments and Contingencies
| (a) | Leases – The Company has operating leases for certain facilities that expire through 2022. Certain of the leases contain escalation clauses that require payments of additional rent as well as increases in related operating costs.
Future minimum lease payments under non-cancelable operating leases as of December 31, 2017, are as follows (in thousands):
Years Ending December 31, |  | Operating Leases
2018 |  |  | 652 |
2019 |  |  | 625 |
2020 |  |  | 644 |
2021 |  |  | 637 |
2022 |  |  | 549 |
Total minimum lease payments |  | $ | 3,107 |
Rent expense amounted to approximately $0.9 million, $0.8 million and $1.2 million in 2017, 2016 and 2015, respectively.
| (b) | Legal – From time to time, the Company may be a party to various suits, claims and complaints arising in the ordinary course of business. In the opinion of management of the Company, these suits, claims and complaints should not result in final judgments or settlements that, in the aggregate, would have a material adverse effect on the Company’s financial condition or results of operations.

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