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Related Party Transactions (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Qualstar        
Due from related party        
Due from related party, beginning balance $ 23 $ 16 $ 85 $ 52
Billed (or accrued) to related party by Interlink 206 217 592 692
Paid by related party to Interlink (203) (217) (651) (728)
Due from related party, end balance 26 16 26 16
Due to related party        
Due to related party, beginning balance 7 1 8 34
Billed (or accrued) to Interlink by related party 29 22 74 76
Paid by Interlink to related party (28) (23) (74) (110)
Due to related party, end balance 8 0 8 0
BKF Capital        
Due from related party        
Due from related party, beginning balance 6 6 12  
Billed (or accrued) to related party by Interlink 20 33 81 46
Paid by related party to Interlink (14) (32) (81) (39)
Due from related party, end balance 12 7 12 7
Due to related party        
Due to related party, beginning balance 0 0    
Billed (or accrued) to Interlink by related party 37 30 97 30
Paid by Interlink to related party (37) (30) (97) (30)
Due to related party, end balance $ 0 $ 0 $ 0 $ 0