Annual report pursuant to Section 13 and 15(d)

Note 3 - Retirement Plan (Details Textual)

v2.4.1.9
Note 3 - Retirement Plan (Details Textual) (USD $)
12 Months Ended
Mar. 29, 2015
Mar. 30, 2014
Mar. 31, 2013
Defined Contribution Plan, Employer Discretionary Contribution Amount $ 171,000us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount $ 153,000us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount  
First 2% Employee Contributions [Member]      
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay   100.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
/ us-gaap_DefinedContributionPlanTypeAxis
= crws_First2EmployeeContributionsMember
100.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
/ us-gaap_DefinedContributionPlanTypeAxis
= crws_First2EmployeeContributionsMember
Defined Contribution Plan Employee Contribution Percent   2.00%crws_DefinedContributionPlanEmployeeContributionPercent
/ us-gaap_DefinedContributionPlanTypeAxis
= crws_First2EmployeeContributionsMember
2.00%crws_DefinedContributionPlanEmployeeContributionPercent
/ us-gaap_DefinedContributionPlanTypeAxis
= crws_First2EmployeeContributionsMember
Next 1% Employee Contributions [Member]      
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay   50.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
/ us-gaap_DefinedContributionPlanTypeAxis
= crws_Next1EmployeeContributionsMember
50.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
/ us-gaap_DefinedContributionPlanTypeAxis
= crws_Next1EmployeeContributionsMember
Defined Contribution Plan Employee Contribution Percent   1.00%crws_DefinedContributionPlanEmployeeContributionPercent
/ us-gaap_DefinedContributionPlanTypeAxis
= crws_Next1EmployeeContributionsMember
1.00%crws_DefinedContributionPlanEmployeeContributionPercent
/ us-gaap_DefinedContributionPlanTypeAxis
= crws_Next1EmployeeContributionsMember