4. PREPAID EXPENSES AND OTHER CURRENT ASSETS (Tables)

12 Months Ended

Dec. 31, 2018

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Prepaid expenses and other current assets

Prepaid expenses and other current assets are summarized as follows:

	December 31, 2018		December 31, 2017
Prepaid insurance	$	29,524	$	25,402
Deposit on future raw material purchases		226,547		30,272
Total prepaid expenses and other current assets	$	256,071	$	55,674