Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Commercial Customers [Member]
Sales Distribution
Revenues	$ 735,948	$ 377,392	$ 1,764,137	$ 1,723,178
Commercial Customers [Member] | Test Units & Engineering [Member]
Sales Distribution
Revenues	303,466	55,594	560,680	541,679
Commercial Customers [Member] | Repairs & Calibration [Member]
Sales Distribution
Revenues	316,591	260,238	924,414	898,670
Commercial Customers [Member] | Product and Service, Other [Member]
Sales Distribution
Revenues	115,891	61,560	279,043	282,829
U.S. Government [Member]
Sales Distribution
Revenues	2,236,189	2,025,707	5,827,518	5,111,945
U.S. Government [Member] | Test Units & Engineering [Member]
Sales Distribution
Revenues
U.S. Government [Member] | Repairs & Calibration [Member]
Sales Distribution
Revenues
U.S. Government [Member] | Product and Service, Other [Member]
Sales Distribution
Revenues	$ 2,236,189	$ 2,025,707	$ 5,827,518	$ 5,111,945