Annual report pursuant to Section 13 and 15(d)

Note 2 - Summary of Significant Accounting Policies (Details Textual)

v3.20.1
Note 2 - Summary of Significant Accounting Policies (Details Textual)
$ in Thousands, shares in Millions
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Oct. 31, 2019
USD ($)
Dec. 31, 2019
USD ($)
Sep. 30, 2019
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
shares
Jan. 01, 2019
USD ($)
Cost of Goods and Services Sold, Total       $ 34,233 $ 27,568  
Accounts Receivable, Credit Loss Expense (Reversal)       $ 37 (218)  
Number of Reportable Segments   2 1      
Number of Financial Institutions   2   2    
Inventory Valuation Reserves, Ending Balance   $ 100   $ 100 100  
Medical Equipment in Rental Services, Useful Life       7 years    
Medical Equipment in Rental Services Reserve   720   $ 720 530  
Medical Equipment Held for Sale or Rental, Reserve   28   28 0  
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) $ 0          
Capitalized Computer Software, Net, Ending Balance   0   0 0  
Capitalized Computer Software, Amortization       2,000 2,300  
Impairment of Long-Lived Assets Held-for-use       0    
Operating Lease, Right-of-Use Asset   5,733   5,733 $ 3,100
General and Administrative Expense, Total       29,023 25,399  
Increase (Decrease) in Accounts Receivable       1,560 $ (1,909)  
Operating Lease, Liability, Total   6,055   $ 6,055   $ 3,100
Share-based Payment Arrangement, Option [Member]            
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares         0.1  
Revenue, Product and Service Benchmark [Member] | Customer Concentration Risk [Member]            
Concentration Risk, Percentage       17.70% 15.70%  
Revenue, Product and Service Benchmark [Member] | Customer Concentration Risk [Member] | National Association 2 [Member] | Oncology Business [Member]            
Concentration Risk, Percentage       8.00% 7.00%  
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | National Association 2 [Member]            
Concentration Risk, Percentage       5.00% 4.00%  
Computer Software, Intangible Asset [Member]            
Finite-Lived Intangible Asset, Useful Life       3 years    
Information Technology Software [Member]            
Property, Plant and Equipment, Useful Life       3 years    
Computer Equipment [Member]            
Property, Plant and Equipment, Useful Life       5 years    
Maximum [Member]            
Medical Equipment Held for Sale or Rental, Reserve   $ 100   $ 100    
Property, Plant and Equipment, Useful Life       7 years    
Lessee, Operating Lease, Renewal Term   5 years   5 years    
Maximum [Member] | Physician and Customer Relationships [Member]            
Finite-Lived Intangible Asset, Useful Life       20 years    
Maximum [Member] | Software Development [Member]            
Property, Plant and Equipment, Useful Life       5 years    
Minimum [Member]            
Property, Plant and Equipment, Useful Life       3 years    
Lessee, Operating Lease, Renewal Term   1 year   1 year    
Minimum [Member] | Physician and Customer Relationships [Member]            
Finite-Lived Intangible Asset, Useful Life       15 years    
Minimum [Member] | Software Development [Member]            
Property, Plant and Equipment, Useful Life       3 years    
Restatement Adjustment [Member]            
Cost of Goods and Services Sold, Total         $ (552)  
Accounts Receivable, Credit Loss Expense (Reversal)         (6,322)  
General and Administrative Expense, Total         552  
Increase (Decrease) in Accounts Receivable         $ (6,322)