The following table summarizes information about stock options that are vested or expected to vest at June 30, 2021: (Details) | 6 Months Ended |
Jun. 30, 2021USD ($)$ / sharesshares |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] | |
Options Outstanding, Number of Options | shares | 623,000 |
Options Outstanding, Weighted Average Exercise Price Per Share | $ 0.59 |
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 1 year 7 months 17 days |
Options Outstanding, Aggregate Intrinsic Value | $ | $ 0 |
Exercisable Options, Number of Options | shares | 623,000 |
Exercisable Options, Weighted Average Exercise Price Per Share | $ 0.59 |
Exercisable Options, Weighted Average Remaining Contractual Life (Years) | 1 year 7 months 17 days |
Exercisable Options, Aggregate Intrinsic Value | $ | $ 0 |
Exercise Price, Lower Range Limit | $ 0.001 |
Exercise Price, Upper Range Limit | $ 1.21 |
Exercise Price 0.001 [Member] | |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] | |
Options Outstanding, Number of Options | shares | 45,000 |
Options Outstanding, Weighted Average Exercise Price Per Share | $ 0.001 |
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 1 year 9 months 29 days |
Options Outstanding, Aggregate Intrinsic Value | $ | $ 0 |
Exercisable Options, Number of Options | shares | 45,000 |
Exercisable Options, Weighted Average Exercise Price Per Share | $ 0.001 |
Exercisable Options, Weighted Average Remaining Contractual Life (Years) | 1 year 9 months 29 days |
Exercisable Options, Aggregate Intrinsic Value | $ | $ 0 |
Exercise Price 0.05 [Member] | |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] | |
Options Outstanding, Number of Options | shares | 3,000 |
Options Outstanding, Weighted Average Exercise Price Per Share | $ 0.05 |
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 2 years 3 months |
Options Outstanding, Aggregate Intrinsic Value | $ | $ 0 |
Exercisable Options, Number of Options | shares | 3,000 |
Exercisable Options, Weighted Average Exercise Price Per Share | $ 0.05 |
Exercisable Options, Weighted Average Remaining Contractual Life (Years) | 2 years 3 months |
Exercisable Options, Aggregate Intrinsic Value | $ | $ 0 |
Exercise Price 0.15 [Member] | |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] | |
Options Outstanding, Number of Options | shares | 90,000 |
Options Outstanding, Weighted Average Exercise Price Per Share | $ 0.15 |
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 1 year 9 months 29 days |
Options Outstanding, Aggregate Intrinsic Value | $ | $ 0 |
Exercisable Options, Number of Options | shares | 90,000 |
Exercisable Options, Weighted Average Exercise Price Per Share | $ 0.15 |
Exercisable Options, Weighted Average Remaining Contractual Life (Years) | 1 year 9 months 29 days |
Exercisable Options, Aggregate Intrinsic Value | $ | $ 0 |
Exercise Price 0.18 [Member] | |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] | |
Options Outstanding, Number of Options | shares | 45,000 |
Options Outstanding, Weighted Average Exercise Price Per Share | $ 0.18 |
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 2 years 3 months 29 days |
Options Outstanding, Aggregate Intrinsic Value | $ | $ 0 |
Exercisable Options, Number of Options | shares | 45,000 |
Exercisable Options, Weighted Average Exercise Price Per Share | $ 0.18 |
Exercisable Options, Weighted Average Remaining Contractual Life (Years) | 2 years 3 months 29 days |
Exercisable Options, Aggregate Intrinsic Value | $ | $ 0 |
Exercise Price 0.19 [Member] | |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] | |
Options Outstanding, Number of Options | shares | 45,000 |
Options Outstanding, Weighted Average Exercise Price Per Share | $ 0.19 |
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 2 years 6 months 29 days |
Options Outstanding, Aggregate Intrinsic Value | $ | $ 0 |
Exercisable Options, Number of Options | shares | 45,000 |
Exercisable Options, Weighted Average Exercise Price Per Share | $ 0.19 |
Exercisable Options, Weighted Average Remaining Contractual Life (Years) | 2 years 6 months 29 days |
Exercisable Options, Aggregate Intrinsic Value | $ | $ 0 |
Exercise Price 0.20 [Member] | |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] | |
Options Outstanding, Number of Options | shares | 48,000 |
Options Outstanding, Weighted Average Exercise Price Per Share | $ 0.20 |
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 2 years 6 months 18 days |
Options Outstanding, Aggregate Intrinsic Value | $ | $ 0 |
Exercisable Options, Number of Options | shares | 48,000 |
Exercisable Options, Weighted Average Exercise Price Per Share | $ 0.20 |
Exercisable Options, Weighted Average Remaining Contractual Life (Years) | 2 years 6 months 18 days |
Exercisable Options, Aggregate Intrinsic Value | $ | $ 0 |
Exercise Price 0.31 [Member] | |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] | |
Options Outstanding, Number of Options | shares | 3,000 |
Options Outstanding, Weighted Average Exercise Price Per Share | $ 0.31 |
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 1 year 6 months |
Options Outstanding, Aggregate Intrinsic Value | $ | $ 0 |
Exercisable Options, Number of Options | shares | 3,000 |
Exercisable Options, Weighted Average Exercise Price Per Share | $ 0.31 |
Exercisable Options, Weighted Average Remaining Contractual Life (Years) | 1 year 6 months |
Exercisable Options, Aggregate Intrinsic Value | $ | $ 0 |
Exercise Price 0.32 [Member] | |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] | |
Options Outstanding, Number of Options | shares | 3,000 |
Options Outstanding, Weighted Average Exercise Price Per Share | $ 0.32 |
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 1 year 9 months |
Options Outstanding, Aggregate Intrinsic Value | $ | $ 0 |
Exercisable Options, Number of Options | shares | 3,000 |
Exercisable Options, Weighted Average Exercise Price Per Share | $ 0.32 |
Exercisable Options, Weighted Average Remaining Contractual Life (Years) | 1 year 9 months |
Exercisable Options, Aggregate Intrinsic Value | $ | $ 0 |
Exercise Price 0.73 [Member] | |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] | |
Options Outstanding, Number of Options | shares | 3,000 |
Options Outstanding, Weighted Average Exercise Price Per Share | $ 0.73 |
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 1 year 3 months |
Options Outstanding, Aggregate Intrinsic Value | $ | $ 0 |
Exercisable Options, Number of Options | shares | 3,000 |
Exercisable Options, Weighted Average Exercise Price Per Share | $ 0.73 |
Exercisable Options, Weighted Average Remaining Contractual Life (Years) | 1 year 3 months |
Exercisable Options, Aggregate Intrinsic Value | $ | $ 0 |
Exercise Price 0.61 [Member] | |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] | |
Options Outstanding, Number of Options | shares | 45,000 |
Options Outstanding, Weighted Average Exercise Price Per Share | $ 0.61 |
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 1 year 4 months 2 days |
Options Outstanding, Aggregate Intrinsic Value | $ | $ 0 |
Exercisable Options, Number of Options | shares | 45,000 |
Exercisable Options, Weighted Average Exercise Price Per Share | $ 0.61 |
Exercisable Options, Weighted Average Remaining Contractual Life (Years) | 1 year 4 months 2 days |
Exercisable Options, Aggregate Intrinsic Value | $ | $ 0 |
Exercise Price 0.95 [Member] | |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] | |
Options Outstanding, Number of Options | shares | 200,000 |
Options Outstanding, Weighted Average Exercise Price Per Share | $ 0.95 |
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 1 year 2 months 12 days |
Options Outstanding, Aggregate Intrinsic Value | $ | $ 0 |
Exercisable Options, Number of Options | shares | 200,000 |
Exercisable Options, Weighted Average Exercise Price Per Share | $ 0.95 |
Exercisable Options, Weighted Average Remaining Contractual Life (Years) | 1 year 2 months 12 days |
Exercisable Options, Aggregate Intrinsic Value | $ | $ 0 |
Exercise Price 1.09 [Member] | |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] | |
Options Outstanding, Number of Options | shares | 3,000 |
Options Outstanding, Weighted Average Exercise Price Per Share | $ 1.09 |
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 1 year |
Options Outstanding, Aggregate Intrinsic Value | $ | $ 0 |
Exercisable Options, Number of Options | shares | 3,000 |
Exercisable Options, Weighted Average Exercise Price Per Share | $ 1.09 |
Exercisable Options, Weighted Average Remaining Contractual Life (Years) | 1 year |
Exercisable Options, Aggregate Intrinsic Value | $ | $ 0 |
Exercise Price 1.10 [Member] | |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] | |
Options Outstanding, Number of Options | shares | 45,000 |
Options Outstanding, Weighted Average Exercise Price Per Share | $ 1.10 |
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 1 year 29 days |
Options Outstanding, Aggregate Intrinsic Value | $ | $ 0 |
Exercisable Options, Number of Options | shares | 45,000 |
Exercisable Options, Weighted Average Exercise Price Per Share | $ 1.10 |
Exercisable Options, Weighted Average Remaining Contractual Life (Years) | 1 year 29 days |
Exercisable Options, Aggregate Intrinsic Value | $ | $ 0 |
Exercise Price 1.21 [Member] | |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] | |
Options Outstanding, Number of Options | shares | 45,000 |
Options Outstanding, Weighted Average Exercise Price Per Share | $ 1.21 |
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 9 months 29 days |
Options Outstanding, Aggregate Intrinsic Value | $ | $ 0 |
Exercisable Options, Number of Options | shares | 45,000 |
Exercisable Options, Weighted Average Exercise Price Per Share | $ 1.21 |
Exercisable Options, Weighted Average Remaining Contractual Life (Years) | 9 months 29 days |
Exercisable Options, Aggregate Intrinsic Value | $ | $ 0 |