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Stockholders' Equity - Stock Options Rollforward (Details) - 2012 Plan
12 Months Ended
Dec. 25, 2021
USD ($)
$ / shares
shares
Number of Shares  
Number of Shares, Outstanding (in shares) | shares 106,000
Number of Shares, Options exercised (in shares) | shares (100,000)
Number of Shares, Outstanding (in shares) | shares 6,000
Weighted Average Exercise Price  
Weighted Average Exercise Price, Outstanding (in USD per share) | $ / shares $ 8.35
Weighted Average Exercise Price, Options exercised (in USD per share) | $ / shares 8.44
Weighted Average Exercise Price, Outstanding (in USD per share) | $ / shares $ 6.93
Weighted Average Remaining Contractual Life, Outstanding 7 months 6 days
Aggregate Intrinsic Value, Outstanding | $ $ 225,480
Vested and Expected to Vest  
Number of Shares, Vested and expected to vest (in shares) | shares 6,000
Weighted Average Exercise Price, Vested and expected to vest (in USD per share) | $ / shares $ 6.93
Weighted Average Remaining Contractual Life, Vested and expected to vest 7 months 6 days
Aggregate Intrinsic Value, Vested and expected to vest | $ $ 225,480
Additional Disclosures  
Number of Shares, Exercisable (in shares) | shares 6,000
Weighted Average Exercise Price, Exercisable (in USD per share) | $ / shares $ 6.93
Weighted Average Remaining Contractual Life, Exercisable 7 months 6 days
Aggregate Intrinsic Value, Exercisable | $ $ 225,480