11. LONG-TERM DEBT (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
Feb. 28, 2019	Apr. 10, 2019	Apr. 10, 2015
Convertible debt, principal amount	$ 6,110	$ 0	$ 4,110
Convertible note, interest rate	9.00%
Convertible note, maturity	Apr. 10, 2019
Convertible note, interest payment	Interest is payable quarterly on March 1, June 1, September 1 and December 1 of each year.
Debt issuance costs	$ 356
Convertible Notes, Terms of Conversion Feature	The conversion price for the Convertible Notes is $2.30 per share and is subject to adjustment upon the occurrence of certain specified events. Holders may convert all or any part of the principal amount of their Convertible Notes in integrals of $10,000 at any time prior to the maturity date. Upon conversion, the Company will deliver shares of its common stock to the holder of Convertible Notes electing such conversion. The Company may not redeem the Convertible Notes prior to maturity.
Line of credit, maximum borrowing capacity	$ 2,000		2,000
Balance available to borrow under the line of credit	$ 0		$ 2,000
Conversion Price
Conversion price for the Convertible Notes	$ 2.30		$ 2.65
Forced Conversion Price
Conversion price for the Convertible Notes	$ 6.51		$ 7.50

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

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Description of the conversion terms of a debt instrument which may include the conversion ratio (including all potential conversion ratios if contingently adjustable), type of debt or equity security into which the debt is convertible, the dollars of debt or the number of shares into which the instrument is convertible (or potentially convertible into), the conversion period, any contingencies associated with the conversion terms, and the existence and amount of a beneficial conversion feature.

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Description of the frequency of periodic payments (monthly, quarterly, annual).

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The average effective interest rate during the reporting period.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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