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Significant Accounting Policies (Details 3) - USD ($)
Jan. 02, 2016
Jan. 03, 2015
Inventories    
Reference standards $ 1,239,338 $ 1,760,305
Bulk ingredients 7,195,461 2,298,036
Inventory-gross 8,434,799 4,058,341
Less valuation allowance 261,000 324,000
Inventory-net $ 8,173,799 $ 3,734,341