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Note 11 - Status of Nonvested Stock Options Outstanding (Details)
 12 Months Ended
Jan. 02, 2016
$ / shares
shares
Nonvested at January 3, 2015 (in shares) 22,500
Nonvested at January 3, 2015 (in dollars per share) | $ / shares $ 2.53
Vested (in shares) (2,500)
Vested (in dollars per share) | $ / shares $ 2.88
Forfeited (in shares) (5,000)
Forfeited (in dollars per share) | $ / shares $ 2.94
Issued nonvested (in shares) 0
Nonvested at January 2, 2016 (in shares) 15,000
Nonvested at January 2, 2016 (in dollars per share) | $ / shares $ 2.33