Annual report pursuant to Section 13 and 15(d)

Note 1 - Basis of Presentation and Nature of Operations (Details Textual)

v3.21.1
Note 1 - Basis of Presentation and Nature of Operations (Details Textual)
12 Months Ended
Dec. 31, 2020
Number of Operating Locations 5
Supplier Concentration Risk [Member] | Cost of Goods and Service, Product and Service Benchmark [Member] | Ambulatory Pumps [Member] | Smiths Medical, Inc. [Member] | Minimum [Member]  
Concentration Risk, Percentage 10.00%
Supplier Concentration Risk [Member] | Cost of Goods and Service, Product and Service Benchmark [Member] | Ambulatory Pumps [Member] | Moog Medical Devices Group [Member] | Minimum [Member]  
Concentration Risk, Percentage 10.00%
Supplier Concentration Risk [Member] | Cost of Goods and Service, Product and Service Benchmark [Member] | NPWT Medical Equipment [Member] | Cardinal Health, Inc. [Member] | Minimum [Member]  
Concentration Risk, Percentage 10.00%