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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Operating activities    
Net loss $ (1,439) $ (5,664)
Depreciation 607 1,222
Amortization of intangible assets 150 1,460
Amortization of right-of-use assets 680 622
Amortization of debt issuance cost 43 75
Amortization of imputed interest (166)  
Deferred income tax expense (benefit) 1,245 (329)
Change in receivable reserves 3,093 (350)
Change in inventory reserves 361 241
Inventory write-off from flood damage 2,688  
Gain on sale of subsidiaries (17,893)  
Insurance receivable (1,800)  
Unrealized loss on short term investments 2,750  
Accrued pension 114 (55)
Stock-based compensation 12 165
Other   21
Intangible asset impairment 83 1,350
Goodwill impairment 2,969  
Foreign currency remeasurement loss (100) 42
Changes in current operating assets and liabilities:    
Accounts receivable 1,855 (1,373)
Inventories (1,145) (2,118)
Prepaid expenses and other assets (250) (708)
Income taxes 827 (93)
Accounts payable and accrued liabilities (3) 8,323
Customer deposits and deferred revenue (254) (678)
Net cash (used in)/provided by operating activities (5,573) 2,153
Investing activities    
Additions to property, plant and equipment (153) (589)
Proceeds from sale of subsidiaries, net 39,923  
Proceeds from sale of fixed assets   762
Net cash provided by investing activities 39,770 173
Financing activities    
Bank overdrafts (1,439) 699
Short term borrowings   (5,430)
Borrowing under debt agreement 15,329 40,599
Repayment of debt (40,070) (38,848)
Payment of debt issuance cost (15) (18)
Write-off of notes receivable 600  
Principal repayments of financing leases (635) (414)
Net cash used in financing activities (26,230) (3,412)
Increase (decrease) in cash and cash equivalents 7,966 (1,086)
Effect of foreign exchange on cash and cash equivalents 36 1,079
Cash and cash equivalents    
Beginning of period 211 218
End of period 8,213 211
Supplemental cash flow information:    
Interest paid 1,106 2,603
Income taxes paid, net of refunds 477 $ 587
Non-cash investing and financing activities:    
Securities received for sale of subsidiary 4,207  
Notes receivable recognized upon Equity Transaction $ 4,929