Note 10 - Share-Based Compensation (Details) (USD $) | 9 Months Ended | |
6-May-15 | 7-May-14 | Aug. 27, 2014 |
Note 10 - Share-Based Compensation (Details) [Line Items] | | | |
Number of Stock Plans | 2 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 628,060 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | 1,313,246 | | 800,754 |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition | 1 year 255 days | | |
Restricted Stock Units (RSUs) [Member] | | | |
Note 10 - Share-Based Compensation (Details) [Line Items] | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 3 years | | |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options (in Dollars) | 900,000 | | |
General and Administrative Expense [Member] | Non Employee Directors Stock Plan [Member] | | | |
Note 10 - Share-Based Compensation (Details) [Line Items] | | | |
Allocated Share-based Compensation Expense (in Dollars) | 472,000 | 441,000 | |
General and Administrative Expense [Member] | Employee Stock Plan [Member] | | | |
Note 10 - Share-Based Compensation (Details) [Line Items] | | | |
Allocated Share-based Compensation Expense (in Dollars) | 543,000 | $476,000 | |
Non Employee Directors Stock Plan [Member] | Share-based Compensation Award, Tranche One [Member] | | | |
Note 10 - Share-Based Compensation (Details) [Line Items] | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage | 100.00% | | |
Non Employee Directors Stock Plan [Member] | | | |
Note 10 - Share-Based Compensation (Details) [Line Items] | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 1,100,000 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | 800,000 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period | 100,000 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | 400,000 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | 10 years | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 0 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | 0 | | |
Restricted Stock and Unit Awards Granted to Named Executive Officers, Percentage | 20.00% | | |
Employee Stock Plan [Member] | Executive Officer [Member] | | | |
Note 10 - Share-Based Compensation (Details) [Line Items] | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage | | 25.00% | |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | | 10 years | |
Employee Stock Plan [Member] | Share-based Compensation Award, Tranche One [Member] | | | |
Note 10 - Share-Based Compensation (Details) [Line Items] | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage | 50.00% | | |
Employee Stock Plan [Member] | Share-based Compensation Award, Tranche Two [Member] | | | |
Note 10 - Share-Based Compensation (Details) [Line Items] | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage | 25.00% | | |
Employee Stock Plan [Member] | Share-based Compensation Award, Tranche Three [Member] | | | |
Note 10 - Share-Based Compensation (Details) [Line Items] | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage | 25.00% | | |
Employee Stock Plan [Member] | | | |
Note 10 - Share-Based Compensation (Details) [Line Items] | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 2,600,000 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | 5,300,000 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period | 3,100,000 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | 400,000 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage | | 25.00% | |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | 10 years | 6 years | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | 1,313,248 | | |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit (in Dollars per share) | 3.44 | | |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit (in Dollars per share) | 11.1 | | |