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Stockholders' Equity (Details - Stock Option) - Options Held [Member]
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Jun. 30, 2023
USD ($)
$ / shares
shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]  
Number of Shares Options Outstanding, Beginning | shares 1,383
Exercise Price Outstanding, Beginning | $ / shares $ 3.40
Number of Shares Options Granted | shares 115
Exercise Price Granted | $ / shares $ 4.96
Number of Shares Options Expired | shares (9)
Exercise Price Expired | $ / shares $ 2.04
Number of Shares Options Exercised | shares (164)
Exercise Price Exercised | $ / shares $ 2.55
Number of Shares Options Outstanding, Ending | shares 1,325
Exercise Price Outstanding, Ending | $ / shares $ 3.65
Weighted Average Remaining Contractual Life (in years) Outstanding, Ending 2 years 1 month 6 days
Aggregate Intrinsic Value Outstanding | $ $ 987
Number of Shares Options Options exercisable at end of period | shares 1,147
Exercise Price Options exercisable at end of period | $ / shares $ 3.45
Weighted Average Remaining Contractual Life (in years) Exercisable 1 year 6 months
Aggregate Intrinsic Value Exercisable | $ $ 979