Significant segment expenses, which are the same as the entity as a whole, are as follows: (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting [Line Items]
Total revenue	$ 15,332		$ 20,359		$ 28,290	$ 34,984
Total Expense	15,490		17,126		29,410	31,407
Net Income (loss)	(158)	$ (962)	3,233	$ 343	(1,120)	3,577
Employee Costs [Member]
Segment Reporting [Line Items]
Total Expense	3,723		3,961		7,832	7,327
Contractors and Professional Services [Member]
Segment Reporting [Line Items]
Total Expense	2,471		3,787		5,011	7,205
Materials And Supplies [Member]
Segment Reporting [Line Items]
Total Expense	5,196		6,897		9,403	11,742
Depreciation [Member]
Segment Reporting [Line Items]
Total Expense	323		225		636	451
Interest Expense [Member]
Segment Reporting [Line Items]
Total Expense	279		282		543	458
Other (income) [Member]
Segment Reporting [Line Items]
Total Expense			(1,428)			(1,428)
Tax Expense [Member]
Segment Reporting [Line Items]
Total Expense	36		418		56	447
Facilities [Member]
Segment Reporting [Line Items]
Total Expense	938		990		1,906	1,933
Shipping [Member]
Segment Reporting [Line Items]
Total Expense	335		265		561	522
Testing [Member]
Segment Reporting [Line Items]
Total Expense	14		79		39	269
IT Services [Member]
Segment Reporting [Line Items]
Total Expense	384		347		739	681
Insurance [Member]
Segment Reporting [Line Items]
Total Expense	226		213		452	414
Manufacturing Other Expense [Member]
Segment Reporting [Line Items]
Total Expense	220		277		562	167
Selling, general and administrative Other expense [Member]
Segment Reporting [Line Items]
Total Expense	$ 1,345		$ 813		$ 1,670	$ 1,219