Annual report pursuant to Section 13 and 15(d)

Note 3 - Discontinued Operations (Details Textual)

v3.8.0.1
Note 3 - Discontinued Operations (Details Textual) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 03, 2017
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax   $ 2,112,000 $ 151,000 $ (2,036,000) $ 88,446,000 $ (1,764,000) $ 1,702,000 $ (5,865,000) $ (1,004,000) $ (490,758) $ (6,931,137) $ (4,518,938) [1]
Disposa Group, Including Discontinued Operation, Royalty Revenue                   1,194,660
Discontinued Operation, Tax Effect of Income (Loss) from Discontinued Operation During Phase-out Period                   (8,031)
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax                   89,163,811
Warrants Issued During Period, Value Issued, Asset Sale                   3,337,187    
GDS Business [Member                        
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax                       759,000
Disposa Group, Including Discontinued Operation, Royalty Revenue                       1,200,000
Discontinued Operation, Tax Effect of Income (Loss) from Discontinued Operation During Phase-out Period                       $ 436,000
Sale of Assets to Cardinal Health 414 [Member]                        
Sale of Assets, Cash Received from Buyer, After Adjustments, Inventory Transferred $ 80,600,000                      
Sale of Assets, Cash Received from Buyer, After Adjustments, Advances of Guaranteed Earnout Payments $ 3,000,000                      
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax                   89,200,000    
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax, Guaranteed Consideration                   16,500,000    
Warrants Issued During Period, Value Issued, Asset Sale                   3,300,000    
Sale of Assets, Legal and Other Fees Related to the Sale                   2,000,000    
Sale of Assets, Net Balance Sheet Dispositions and Write-offs   $ 800,000               800,000    
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation                   $ 4,100,000    
[1] Amount not allocated to a reportable segment represents contingent consideration recognized related to 2015 GDS Business revenue royalties pursuant to the 2011 sale of the GDS Business to Devicor, net of tax effect. See Note 1(a).