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LEASES - Operating and Financing leases (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Nov. 29, 2021
Dec. 31, 2020
Balance sheet presentation of our operating and financing leases      
Operating lease right-of-use assets, net $ 858 $ 800 $ 306
Finance lease right-of-use assets, net 371   204
Total lease assets 1,229   510
Current maturities of operating lease liabilities 166   225
Current maturities of finance lease liabilities 222   48
Operating lease liabilities, less current maturities 697 $ 800 92
Finance lease liabilities, less current maturities 159   116
Total lease liabilities 1,244   481
HemeScreen Reagent Rental [Member]      
Balance sheet presentation of our operating and financing leases      
Finance lease right-of-use assets, net $ 61   29
Right of Use Asset | Reclassified to finance lease right of use assets [Member]      
Balance sheet presentation of our operating and financing leases      
Finance lease right-of-use assets, net     29
Property, Plant and Equipment [Member] | Reclassified to finance lease right of use assets [Member]      
Balance sheet presentation of our operating and financing leases      
Finance lease right-of-use assets, net     $ 175