v3.20.2
Note 4 - Revenue from Contracts with Customers - Changes in Contract Liabilities (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
May 31, 2020
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Contract Liabilities: Deferred Revenue       $ 3,244  
Contract Liabilities: Deferred Revenue, Additions       0  
Contract Liabilities: Deferred Revenue, Deductions       (3,048)  
Contract Liabilities: Deferred Revenue   $ 196   196  
Revenue   1,368 $ 608 4,678 $ 1,814
ZALVISO [Member]          
Contract Liabilities: Deferred Revenue       3,148  
Contract Liabilities: Deferred Revenue, Additions       0  
Contract Liabilities: Deferred Revenue, Deductions       (2,952)  
Contract Liabilities: Deferred Revenue   196   196  
Amounts included in contract liabilities at the beginning of the period: Performance obligations eliminated upon termination $ 2,600        
Revenue   352 443 772 1,235
Amended License Agreement [Member]          
Amounts included in contract liabilities at the beginning of the period: Performance obligations satisfied   147 79 380 237
Amounts included in contract liabilities at the beginning of the period: Performance obligations eliminated upon termination   0 0 2,572 0
New activities in the period from performance obligations satisfied: Performance obligations satisfied   205 365 392 1,041
Revenue   352 $ 444 3,344 $ 1,278
Product and Service, Other [Member]          
Contract Liabilities: Deferred Revenue       96  
Contract Liabilities: Deferred Revenue, Additions       0  
Contract Liabilities: Deferred Revenue, Deductions       (96)  
Contract Liabilities: Deferred Revenue   $ 0   $ 0