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Long-term Notes Payable (Including Current Portion) and Line of Credit - Additional Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Jan. 07, 2021
Dec. 31, 2021
Silicon Valley Bank | Revolving Credit Facility    
Line Of Credit Facility [Line Items]    
Line of credit facility allowable amount $ 1.5  
Revolving line of credit, Description (2) the sum of (a) 80% of the aggregate amount of third party accounts receivable balances, excluding progress billings, foreign receivables, accounts subject to dispute or setoff and doubtful accounts (Eligible Accounts) aged less than 90 days, net of 10% allowance, and (b) 25% of raw materials and finished goods, except those held at named contract manufacturer, after a 10% reserve for excess and obsolete inventory. Amounts borrowed under the Line of Credit bore interest at the prime rate plus 1%, payable monthly.  
Domestic Line of Credit [Member]    
Line Of Credit Facility [Line Items]    
Line of Credit Facility, Covenant Terms   The facility was secured by a commercial guarantee and a lien over the property of NimbeLink including inventory, equipment, accounts receivable, investments, deposit accounts, other rights to payment and performance and general intangibles. No amounts were borrowed under this facility during the year ended December 31, 2021 and in April 2021, the Company closed the Line of Credit with Choice.
Domestic Line of Credit [Member] | Revolving Credit Facility | NimbeLink [Member]    
Line Of Credit Facility [Line Items]    
Line Of Credit Facility Aggregate Eligible Accounts Percentage 80.00%  
Line Of Credit Facility Net Allowance Percentage 10.00%  
Line Of Credit Facility Raw Materials And Finished Goods Percentage 25.00%  
Line Of Credit Facility Reserve For Excess And Obsolete Inventory Percentage 10.00%