Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Stock-based Compensation (Details Textual)

v3.19.2
Note 5 - Stock-based Compensation (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Share-based Payment Arrangement, Expense $ 66,000 $ 79,000 $ 128,000 $ 217,000
Share-based Payment Arrangement, Expense, Tax Benefit 0 $ 0 0 $ 0
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total $ 116,000   $ 116,000  
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition     1 year