3. TRADE AND OTHER RECEIVABLES

9 Months Ended

Jan. 31, 2018

Receivables [Abstract]

TRADE AND OTHER RECEIVABLES

Trade receivables are recorded at the invoiced amount net of an allowance for doubtful accounts, if necessary. Other receivables are reported at amounts expected to be collected net of an allowance for doubtful accounts, if necessary. Trade and other receivables consist of the following:

	January 31, 2018		April 30, 2017
Trade receivables(1)	$	7,967,000	$	7,274,000
Other receivables		–		468,000
Total trade and other receivables	$	7,967,000	$	7,742,000

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(1)Represents amounts billed for contract manufacturing services.

We continually monitor our allowance for doubtful accounts for all receivables. We apply judgment in assessing the ultimate realization of our receivables and we estimate an allowance for doubtful accounts based on various factors, such as, the aging of accounts receivable balances, historical experience, and the financial condition of our customers. Based on our analysis of our receivables as of January 31, 2018 and April 30, 2017, we determined no allowance for doubtful accounts was necessary.