Cash outflow to pay for fixed assets.

No definition available.

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Ratio of current maturities of long term interest bearing debt, to earnings before interest, tax, depreciation, and amortization (EBITDA).

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No definition available.

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The ratio of cash available for debt servicing to interest, principal and lease payments.

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No definition available.

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Minimum Consolidated Cash and Liquid Investments Pursuant to New Loan and Security Agreement.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of the required periodic payments including both interest and principal payments.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

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The effective interest rate during the reporting period.

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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, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Note 8 - Debt (Details Textual)		9 Months Ended		12 Months Ended
Note 8 - Debt (Details Textual)	Nov. 22, 2011 USD ($)	Mar. 31, 2018 USD ($)	Mar. 31, 2017	Dec. 31, 2017 USD ($)	Jun. 30, 2017 USD ($)
Line of Credit Facility, Maximum Borrowing Capacity		$ 23,000,000
Line of Credit Facility, Interest Rate During Period		3.20%	2.50%
Long-term Line of Credit, Total		$ 12,900,000
Line of Credit Facility, Commitment Fee Percentage		0.25%
Minimum Consolidated Cash and Liquid Investments Pursuant to New Loan and Security Agreement		$ 10,000,000
Long-term Debt, Total		22,417,000			$ 17,609,000
Notes Payable to Banks [Member] \| Santander Bank and Bradesco Bank [Member]
Debt Instrument, Face Amount				$ 3,500,000
Notes Payable to Banks [Member] \| Santander Bank [Member]
Debt Instrument, Face Amount				$ 1,500,000
Debt Instrument, Term				180 days
Debt Instrument, Interest Rate, Stated Percentage				4.19%
Notes Payable to Banks [Member] \| Bradesco Bank [Member]
Debt Instrument, Face Amount				$ 2,000,000
Debt Instrument, Term				360 days
Debt Instrument, Interest Rate, Stated Percentage				4.75%
Short-term Debt, Total		3,000,000
Term Loan [Member]
Debt Instrument, Face Amount	$ 15,500,000
Debt Instrument, Term	10 years
Debt Instrument, Interest Rate, Stated Percentage	4.50%
Debt Instrument, Periodic Payment, Total	$ 160,640
Long-term Debt, Total		$ 6,500,000
Maximum [Member]
Current Funded Debt to EBITDA Ratio		2.25
Annual Capital Expenditures		$ 15,000,000
Minimum [Member]
Debt Service Coverage Rate		1.25
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate		1.50%