Quarterly report pursuant to Section 13 or 15(d)

Accounting Policies (Details Narrative)

v3.21.1
Accounting Policies (Details Narrative) - USD ($)
3 Months Ended 6 Months Ended
Mar. 28, 2021
Mar. 29, 2020
Mar. 28, 2021
Mar. 29, 2020
Dec. 27, 2020
Sep. 27, 2020
Dec. 29, 2019
Sep. 29, 2019
Sep. 27, 2019
Right-of-use asset $ 3,842,000 [1]   $ 3,842,000 [1]     $ 1,416,000     $ 1,800,000
Lease liability 3,851,000 [2]   3,851,000 [2]     1,336,000 [2]     $ 1,900,000
Warranty reserve 63,000 $ 105,000 63,000 $ 105,000 $ 49,000 83,000 $ 75,000 $ 46,000  
Revenue 4,246,000 6,947,000 8,717,000 12,833,000          
Valuation allowance 1,000,000   1,000,000     $ 1,200,000      
Warrant [Member]                  
Declared Dividends          
Allocated undistributed earnings $ 0 633,000 $ 162,000 413,000          
Number of stock option were included as dilutive 4,125,200   4,125,200            
Unvested Restricted Stock Units [Member]                  
Number of stock option were included as dilutive 99,000   240,000            
Number of stock units were incremental dilutive shares 15,018   81,755            
Unvested Restricted Stock [Member]                  
Number of stock option were included as dilutive 240,000   99,000            
Number of stock units were incremental dilutive shares 36,407   31,129            
Service Contract [Member]                  
Revenue $ 120,000 113,000 $ 240,000 226,000          
Customer Deposit Liabilities [Member]                  
Revenue 0 $ 3,000 $ 1,000 $ 3,000          
Revenue [Member] | U.S. Government Agencies [Member]                  
Concentration risk percentage     16.00%            
Revenue [Member] | Major U.S Defense Contractor One [Member]                  
Concentration risk percentage     46.00%            
Revenue [Member] | Major U.S Defense Contractor Two [Member]                  
Concentration risk percentage     11.00%            
Revenue [Member] | Major U.S Defense Contractor Three [Member]                  
Concentration risk percentage     9.00%            
Revenue [Member] | Major U.S Defense Contractor Three [Member] | One Commercial Customer [Member]                  
Concentration risk percentage     5.00%            
Revenue [Member] | All Other Customers [Member]                  
Concentration risk percentage     13.00%            
November 1, 2021 [Member]                  
Right-of-use asset 3,700,000   $ 3,700,000            
Lease liability $ 3,700,000   $ 3,700,000            
[1] Includes $9 thousand of unamortized deferred rent for the Applied Optics Lease term expiring on October 31, 2021.
[2] Short-term and Long-term portion of Operating Lease Liability is $477 thousand and $3,374 thousand, respectively.