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Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)
Dec. 31, 2021
Dec. 31, 2020
Deferred tax assets:    
  Net operating loss carryforwards $ 6,390,000 $ 4,330,000
  Tax credits 1,032,000 948,000
  Amortization 37,000
  Accruals & reserves 786,000 560,000
  Lease liabilities 70,000 200,000
  Depreciation 167,000 140,000
  Share-based compensation 154,000
     Total deferred tax assets 8,599,000 6,215,000
  Valuation allowance (577,000) (545,000)
     Net deferred tax assets 8,022,000 5,670,000
Deferred tax liabilities:    
  Amortization 3,000
  ROU assets 59,000 163,000
Net deferred tax asset (liability) $ 7,960,000 $ 5,507,000