Annual report pursuant to Section 13 and 15(d)

Common Stock (Details)

v2.4.1.9
Common Stock (Details)
Dec. 31, 2014
Dec. 23, 2009
Common Stock [Abstract]    
Remaining number of shares authorized to be repurchased 411,910us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased  
Number of rights distributed for each share of common stock   1jcs_ClassOfWarrantOrRightNumberOfRightsDistributedBySecurities
Number of securities into which each right may be converted   0.01us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight
Exercise price of right   41us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights
Percentage of common stock required to be purchased for rights to become exercisable   16.50%jcs_PercentageOfCommonStockRequiredToBePurchasedForRightsToBecomeExercisable