Schedule of Assumptions and Results for the Monte Carlo Simulation (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
		Dec. 31, 2023		Dec. 29, 2023	Dec. 22, 2023	Oct. 02, 2023
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]	5 years 5 months 1 day
Time steps in simulation		1,365
Time steps per year		252
Common share price at valuation date		$ 3.04	[2]	$ 5.35	$ 4.45	$ 3.70
Volatility (annual)	[3]	50.00%
Risk-free rate (annual)	[4]	3.37%
Cost of equity	[5]	11.50%
Dividend yield	[6]	0.00%
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
Total fair value of tranch		$ 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
Total fair value of tranch		$ 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
Total fair value of tranch		$ 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
Total fair value of tranch		$ 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
Total fair value of tranch		$ 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] Based on historical volatility of OPXS and comparable public companies.

[4] Interest rate for US Treasury commensurate with the Performance Shares holding period, as of the Valuation Date, as obtained via S&P Capital IQ.

[5] Estimated cost of equity for OPXS as of the Valuation Date.

[6] Expected dividends provided by management.

[7] Based on Monte Carlo simulation.