Note 13 - Employee Benefit Plan (Details Textual) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Defined Contribution Plan, Employer Matching Contribution, Percent of Match | 4.00% | |
| Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 45,000 | $ 33,000 |
| X | ||||||||||
- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. No definition available.
|
| X | ||||||||||
- Definition Percentage employer matches of the employee's percentage contribution matched. No definition available.
|