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Discontinued Operations - Summary of Assets and Liabilities Related to Discontinued Operation Held for Sale (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Current liabilities held for sale:    
Noncurrent liabilities   $ 245
Held for Sale [Member]    
Current assets held for sale:    
Accounts receivable, net $ 230 108
Inventory, net 2,635 2,841
Other current assets 351 328
Long-term assets held for sale:    
Property and equipment, net 211 260
Other noncurrent assets 1,471 1,866
Operating lease right-of-use assets 1,248  
Goodwill 3,550 3,550
Intangible assets, net 5,540 5,957
Total assets 15,236 14,910
Current liabilities held for sale:    
Accounts payable and accrued liabilities 526 580
Current lease liability 485  
Noncurrent operating lease liability 828  
Other noncurrent liabilities 67 78
Deferred revenues 196 167
Noncurrent liabilities $ 2,102 $ 825