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7. Stockholders Equity (Details - Option activity) - Stock Options [Member]
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Jun. 30, 2020
USD ($)
$ / shares
shares
Number of shares  
Number of Shares Options Outstanding, Beginning | shares 3,147
Number of Shares Options Granted | shares 249
Number of Shares Options Forfeited | shares (181)
Number of Shares Options Expired | shares (84)
Number of Shares Options Exercised | shares (1,076)
Number of Shares Options Outstanding, Ending | shares 2,055
Number of Shares Options Options exercisable at end of period | shares 1,339
Weighted Average Exercise Price per share  
Exercise Price Outstanding, Beginning | $ / shares $ 2.29
Exercise Price Granted | $ / shares 3.34
Exercise Price Forfeited | $ / shares 2.35
Exercise Price Expired | $ / shares 2.18
Exercise Price Exercised | $ / shares 1.71
Exercise Price Outstanding, Ending | $ / shares 2.72
Exercise Price Options exercisable at end of period | $ / shares $ 2.35
Weighted Average Remaining Contractual Life (in years) Outstanding, Ending 4 years 3 months 19 days
Weighted Average Remaining Contractual Life (in years) Exercisable 3 years 8 months 12 days
Aggregate Intrinsic Value Outstanding, Ending | $ $ 2,209
Aggregate Intrinsic Value Exercisable | $ $ 1,908