Quarterly report pursuant to Section 13 or 15(d)

Schedule of Assumptions and Results for the Monte Carlo Simulation (Details)

v3.24.1.1.u2
Schedule of Assumptions and Results for the Monte Carlo Simulation (Details) - USD ($)
$ / shares in Units, $ in Thousands
 6 Months Ended
Mar. 31, 2024
Jan. 18, 2024
Mar. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Performance period start     Oct. 02, 2023
Performance period start     Oct. 01, 2028
Term of simulation 1 year 3 months 18 days 1 year 6 months 5 years 5 months 1 day [1]
Time steps in simulation     1,365
Time steps per year     252
Common share price at valuation date [2] $ 3.04   $ 3.04
Dividend yield [3]     0.00%
Volatility (annual) 30.00% 30.00% 50.00% [4]
Risk-free rate (annual) 5.27% 5.00% 3.37% [5]
Cost of equity [6]     11.50%
Share-Based Payment Arrangement, Tranche One [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Number of performance shares in the tranche [1]     27,000
Fair value of one performance share [7] $ 2.75   $ 2.75
Total fair value of tranch $ 74,345   $ 74,345
Derived service period [7]     8 months 15 days
Share-Based Payment Arrangement, Tranche Two [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Number of performance shares in the tranche [1]     27,000
Fair value of one performance share [7] $ 2.58   $ 2.58
Total fair value of tranch $ 69,742   $ 69,742
Derived service period [7]     1 year 1 month 17 days
Share-Based Payment Arrangement, Tranche Three [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Number of performance shares in the tranche [1]     27,000
Fair value of one performance share [7] $ 2.39   $ 2.39
Total fair value of tranch $ 64,446   $ 64,446
Derived service period [7]     1 year 7 months 6 days
Share Based Compensation Award Tranche Four [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Number of performance shares in the tranche [1]     27,000
Fair value of one performance share [7] $ 2.18   $ 2.18
Total fair value of tranch $ 58,819   $ 58,819
Derived service period [7]     2 years 21 days
Share Based Compensation Award Tranche Five [Member]      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Number of performance shares in the tranche [1]     27,000
Fair value of one performance share [7] $ 1.93   $ 1.93
Total fair value of tranch $ 52,238   $ 52,238
Derived service period [7]     2 years 5 months 23 days
[1] Based on the terms of the Performance Shares agreement issued by the Company on May 3, 2023.
[2] Closing price of OPXS shares on the Valuation Date, as obtained via S&P Capital IQ.
[3] Expected dividends provided by management.
[4] Based on historical volatility of OPXS and comparable public companies.
[5] Interest rate for US Treasury commensurate with the Performance Shares holding period, as of the Valuation Date, as obtained via S&P Capital IQ.
[6] Estimated cost of equity for OPXS as of the Valuation Date.
[7] Based on Monte Carlo simulation.