Note 7 - Stock-based Compensation (Tables)
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12 Months Ended |
Apr. 02, 2017 |
Notes Tables |
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Share-based Compensation, Stock Options, Activity [Table Text Block] |
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| | Outstanding at Beginning of Period
| | $ | 7.64 | | | | 305,000 | | | $ | 6.83 | | | | 330,000 | |
| | | 9.60 | | | | 120,000 | | | | 8.38 | | | | 110,000 | |
| | | 7.67 | | | | (102,500 | ) | | | 6.27 | | | | (135,000 | ) | Outstanding at End of Period
| | | 8.35 | | | | 322,500 | | | | 7.64 | | | | 305,000 | | Exercisable at End of Period
| | | 7.33 | | | | 147,500 | | | | 6.72 | | | | 112,500 | |
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Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
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| | | 120,000 | | | | 110,000 | |
| | | June 8, 2016 | | | | June 12, 2015 | |
| | | 3.33 | % | | | 3.82 | % |
| | | 20.00 | % | | | 20.00 | % |
| | | 0.93 | % | | | 1.12 | % |
| | | 10.00 | | | | 10.00 | |
| | | 3.00 | | | | 3.00 | |
| | | 5.00 | % | | | 5.00 | % | Exercise price (grant-date closing price) per option
| | $ | 9.60 | | | $ | 8.38 | |
| | $ | 0.94 | | | $ | 0.77 | |
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Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] |
| | Fiscal Year Ended April 2, 2017
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| | Options Granted in Fiscal Year
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| | $ | 14 | | | $ | 12 | | | $ | 26 | |
| | | 23 | | | | 19 | | | | 42 | |
| | | 25 | | | | 17 | | | | 42 | | | | | | | | | | | | | | | Total stock option compensation
| | $ | 62 | | | $ | 48 | | | $ | 110 | |
| | Fiscal Year Ended April 3, 2016
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| | Options Granted in Fiscal Year
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| | $ | 7 | | | $ | 7 | | | $ | 14 | |
| | | 54 | | | | 45 | | | | 99 | |
| | | 17 | | | | 14 | | | | 31 | | | | | | | | | | | | | | | Total stock option compensation
| | $ | 78 | | | $ | 66 | | | $ | 144 | |
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Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] |
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| | $ | 4.81 | | | | 5,000 | | | | 4.19 | | | $ | 4.81 | | | | 5,000 | | | $ | 4.81 | | $ | 5.42 | | | | 20,000 | | | | 5.20 | | | $ | 5.42 | | | | 20,000 | | | $ | 5.42 | | $ | 6.14 | | | | 20,000 | | | | 6.20 | | | $ | 6.14 | | | | 20,000 | | | $ | 6.14 | | $ | 7.90 | | | | 67,500 | | | | 7.21 | | | $ | 7.90 | | | | 67,500 | | | $ | 7.90 | | $ | 8.38 | | | | 90,000 | | | | 8.19 | | | $ | 8.38 | | | | 35,000 | | | $ | 8.38 | | $ | 9.60 | | | | 120,000 | | | | 9.18 | | | $ | 9.60 | | | | - | | | | - | | | | | | | 322,500 | | | | 7.98 | | | $ | 8.35 | | | | 147,500 | | | $ | 7.33 | |
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Schedule of Share-based Compensation, Nonemployee Director Stock Award Plan, Activity [Table Text Block] |
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| 28,000 | | | $ | 10.08 | |
| 28,000 | | | | 8.20 | |
| 28,000 | | | | 7.97 | |
| 28,000 | | | | 6.67 | |
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Schedule of Nonvested Share Activity [Table Text Block] |
| | Fiscal Year Ended April 2, 2017
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| | Stock Granted in Fiscal Year
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| | $ | - | | | $ | 37 | | | $ | 37 | |
| | | 140 | | | | 115 | | | | 255 | |
| | | 108 | | | | 94 | | | | 202 | | | | | | | | | | | | | | | Total stock grant compensation
| | $ | 248 | | | $ | 246 | | | $ | 494 | |
| | Fiscal Year Ended April 3, 2016
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| | Stock Granted in Fiscal Year
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| | $ | 49 | | | $ | - | | | $ | 49 | |
| | | - | | | | 31 | | | | 31 | |
| | | 354 | | | | 112 | | | | 466 | |
| | | 140 | | | | 76 | | | | 216 | | | | | | | | | | | | | | | Total stock grant compensation
| | $ | 543 | | | $ | 219 | | | $ | 762 | |
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Performance Shares [Member] |
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Notes Tables |
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Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] |
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| | | Compensation expense recognized during fiscal year
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| | | 188,232 | | | | 2015 | | | $ | 5.650 | | | $ | 354,000 | | | $ | 354,000 | | | $ | 354,000 | | | $ | - | | | $ | - | |
| | | 58,532 | | | | 2016 | | | | 7.180 | | | | - | | | | 140,000 | | | | 140,000 | | | | 140,000 | | | | - | |
| | | 41,205 | | | | 2017 | | | | 7.865 | | | | - | | | | - | | | | 108,000 | | | | 108,000 | | | | 108,000 | |
| | | | | | Vesting of shares during fiscal 2016
| | | Vesting of shares during fiscal 2017
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| | | 188,232 | | | | 188,532 | | | $ | 1,618,000 | | | $ | 789,000 | | | | - | | | $ | - | | | $ | - | |
| | | 58,532 | | | | 29,267 | | | | 275,000 | | | | 138,000 | | | | 29,265 | | | | 240,000 | | | | 86,000 | |
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