Note 13 - Enactment of the One Big Beautiful Bill Act - Modifications to FDII Expenses (Details) - Forecast [Member] - USD ($)	3 Months Ended	12 Months Ended
Dec. 26, 2026	Sep. 25, 2026	Jun. 26, 2026	Mar. 27, 2026	Dec. 26, 2026
Expected expense, 2026	$ 216,914	$ 216,914	$ 216,914	$ 216,914	$ 867,656
Expected expense	12.50%	12.50%	12.50%	12.50%

Amount of expense on unamortized costs on foreign-derived intangible income expected to be recognized in fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

No definition available.

Name:	cpsh_ForeignderivedIntangibleIncomeExpectedExpenseYearOne
Namespace Prefix:	cpsh_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration