Annual report pursuant to Section 13 and 15(d)

Note 8 - Stock-based Compensation - Stock Options by Exercise Prices Range (Details)

v3.8.0.1
Note 8 - Stock-based Compensation - Stock Options by Exercise Prices Range (Details)
12 Months Ended
Apr. 01, 2018
$ / shares
shares
Exercise Price Range, Upper Range Limit (in dollars per share)
Number of Options Outstanding (in shares) | shares 395,000
Weighted- Avg. Remaining Contractual Life in Years (Year) 7 years 237 days
Weighted- Avg. Exercise Price of Options Outstanding (in dollars per share) $ 7.93
Number of Options Exercisable (in shares) | shares 220,000
Weighted- Avg. Exercise Price of Options Exercisable (in dollars per share) $ 7.94
Price Range 1 [Member]  
Exercise Price Range, Lower Range Limit (in dollars per share) 4
Exercise Price Range, Upper Range Limit (in dollars per share) $ 4.99
Number of Options Outstanding (in shares) | shares 5,000
Weighted- Avg. Remaining Contractual Life in Years (Year) 3 years 69 days
Weighted- Avg. Exercise Price of Options Outstanding (in dollars per share) $ 4.81
Number of Options Exercisable (in shares) | shares 5,000
Weighted- Avg. Exercise Price of Options Exercisable (in dollars per share) $ 4.81
Price Range 2 [Member]  
Exercise Price Range, Lower Range Limit (in dollars per share) 5
Exercise Price Range, Upper Range Limit (in dollars per share) $ 5.99
Number of Options Outstanding (in shares) | shares 40,000
Weighted- Avg. Remaining Contractual Life in Years (Year) 6 years 281 days
Weighted- Avg. Exercise Price of Options Outstanding (in dollars per share) $ 5.49
Number of Options Exercisable (in shares) | shares 20,000
Weighted- Avg. Exercise Price of Options Exercisable (in dollars per share) $ 5.42
Price Range 3 [Member]  
Exercise Price Range, Lower Range Limit (in dollars per share) 6
Exercise Price Range, Upper Range Limit (in dollars per share) $ 6.99
Number of Options Outstanding (in shares) | shares 30,000
Weighted- Avg. Remaining Contractual Life in Years (Year) 6 years 259 days
Weighted- Avg. Exercise Price of Options Outstanding (in dollars per share) $ 6.26
Number of Options Exercisable (in shares) | shares 20,000
Weighted- Avg. Exercise Price of Options Exercisable (in dollars per share) $ 6.14
Price Range 4 [Member]  
Exercise Price Range, Lower Range Limit (in dollars per share) 7
Exercise Price Range, Upper Range Limit (in dollars per share) $ 7.99
Number of Options Outstanding (in shares) | shares 160,000
Weighted- Avg. Remaining Contractual Life in Years (Year) 8 years 25 days
Weighted- Avg. Exercise Price of Options Outstanding (in dollars per share) $ 7.81
Number of Options Exercisable (in shares) | shares 60,000
Weighted- Avg. Exercise Price of Options Exercisable (in dollars per share) $ 7.90
Price Range 5 [Member]  
Exercise Price Range, Lower Range Limit (in dollars per share) 8
Exercise Price Range, Upper Range Limit (in dollars per share) $ 8.99
Number of Options Outstanding (in shares) | shares 70,000
Weighted- Avg. Remaining Contractual Life in Years (Year) 7 years 73 days
Weighted- Avg. Exercise Price of Options Outstanding (in dollars per share) $ 8.38
Number of Options Exercisable (in shares) | shares 70,000
Weighted- Avg. Exercise Price of Options Exercisable (in dollars per share) $ 8.38
Price Range 6 [Member]  
Exercise Price Range, Lower Range Limit (in dollars per share) 9
Exercise Price Range, Upper Range Limit (in dollars per share) $ 9.99
Number of Options Outstanding (in shares) | shares 90,000
Weighted- Avg. Remaining Contractual Life in Years (Year) 8 years 69 days
Weighted- Avg. Exercise Price of Options Outstanding (in dollars per share) $ 9.60
Number of Options Exercisable (in shares) | shares 45,000
Weighted- Avg. Exercise Price of Options Exercisable (in dollars per share) $ 9.60