Annual report pursuant to Section 13 and 15(d)

Shareholders' Equity Stockholders' Equity (Details 4)

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Shareholders' Equity Stockholders' Equity (Details 4) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jan. 03, 2015
Stockholders' Equity Note [Abstract]  
Fiscal year 2015 $ 193arci_AllocatedSharebasedCompensationEstimatedExpenseNextTwelveMonths
Fiscal year 2016 139arci_AllocatedSharebasedCompensationExpenseYearTwo
Fiscal year 2017 43arci_AllocatedSharebasedCompensationExpenseYearThree
Share-based Compensation Expense $ 375us-gaap_AllocatedShareBasedCompensationExpense