Related Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
BKF Capital
Due from related party
Billed (or accrued) to Interlink by related party	$ 81	$ 6
Paid by related party to Interlink	(69)	(6)
Due from related party, end balance	12
Due to related party
Billed (or accrued) to Interlink by related party	60
Paid by Interlink to related party	(60)
Qualstar
Due from related party
Due from related party, beginning balance	52	24
Billed (or accrued) to Interlink by related party	892	645
Paid by related party to Interlink	(860)	(617)
Due from related party, end balance	84	52
Due to related party
Due to related party, beginning balance	34	12
Billed (or accrued) to Interlink by related party	102	123
Paid by Interlink to related party	(128)	(101)
Due to related party, end balance	$ 8	$ 34

Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of receivables arising from transactions with related parties due within one year or the normal operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
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The increase (decrease) during the reporting period in the obligations due for goods and services provided by the following types of related parties: a parent company and its subsidiaries, subsidiaries of a common parent, an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entities' management, an entity and its principal owners, management, or member of their immediate families, affiliates, or other parties with the ability to exert significant influence.

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The increase (decrease) during the reporting period in the amount due to the reporting entity for good and services provided to the following types of related parties: a parent company and its subsidiaries; subsidiaries of a common parent; an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management, an entity and its principal owners, management, member of their immediate families, affiliates, or other parties with the ability to exert significant influence.

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Payments of cash to suppliers for goods and services during the current period.

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Cash received for fees during the current period. This element excludes cash proceeds from license fees.

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