Significant Accounting Policies (Details 2) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 30, 2017
Accounting Policies [Abstract]
Bulk ingredients	$ 2,385	$ 4,159
Reference standards	848	1,027
Consumer Products - Finished Goods	2,450	503
Consumer Products - Work in Process	2,794	249
Inventory-gross	8,477	5,938
Less valuation allowance	228	142
Inventory-net	$ 8,249	$ 5,796

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.

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Amount of valuation reserve for inventory.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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