Debt Instrument, Number of Customer Contracts

No definition available.

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- Definition

Debt maturity month and year.

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Additional Borrowing Capacity

+ References

No definition available.

+ Details

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Balance Type:	credit
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- Definition

Line Of Credit Facility, Termination Fee Percentage

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

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- Definition

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.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

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Period Type:	instant

- Definition

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

+ References

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Amount of the required periodic payments applied to interest.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

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.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ Details

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Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

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.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Definition

The carrying value as of the balance sheet date of the noncurrent portion 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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Balance Type:	credit
Period Type:	instant

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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- Definition

Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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LONG-TERM DEBT (Narrative) (Details)		12 Months Ended
LONG-TERM DEBT (Narrative) (Details)	Oct. 26, 2018 USD ($)	Mar. 31, 2019 USD ($)	Feb. 28, 2019 USD ($)	Mar. 31, 2018 USD ($)	Jun. 30, 2015 USD ($)	Dec. 31, 2014 USD ($) contract
Line Of Credit Facility [Line Items]
Revolving credit facility		$ 9,202,000		$ 3,908,000
Outstanding letters of credit		$ 0
Equipment debt obligations
Line Of Credit Facility [Line Items]
Principal amount of debt					$ 400,000
Stated interest rate, percentage					5.94%
Debt maturity month and year		2020-06
New Credit Agreement \| Western Alliance Bank \| Line of credit \| Revolving credit facility
Line Of Credit Facility [Line Items]
Contractual term	2 years
Credit facility maturity date		Oct. 26, 2020
Credit facility, maximum limit	$ 20,150,000
Proceeds from Lines of Credit		$ 10,600,000
Revolving credit facility		9,200,000
Credit facility, additional borrowing capacity		$ 1,400,000
Annual facility fee (as a percentage)	0.45%
Termination fee (as a percentage)	0.50%
Interest rate		6.00%
New Credit Agreement \| Western Alliance Bank \| Line of credit \| Revolving credit facility \| Minimum \| PrimeRateMember
Line Of Credit Facility [Line Items]
Basis spread on variable rate	5.00%
New Credit Agreement \| Western Alliance Bank \| Line of credit \| Letter of credit
Line Of Credit Facility [Line Items]
Credit facility, maximum limit	$ 2,000,000
Prior Credit Agreement \| Wells Fargo Bank, National Association \| Revolving credit facility
Line Of Credit Facility [Line Items]
Credit facility, maximum limit		$ 15,000,000
Interest charge		$ 100,000
Commitment fee percentage		0.25%
Prior Credit Agreement \| Wells Fargo Bank, National Association \| Revolving credit facility \| London Interbank Offered Rate (LIBOR)
Line Of Credit Facility [Line Items]
Basis spread on variable rate		3.00%
Prior Credit Agreement \| Wells Fargo Bank, National Association \| Line of credit
Line Of Credit Facility [Line Items]
Commitment fee percentage		3.00%
Debt Instrument 1 \| Equipment debt obligations
Line Of Credit Facility [Line Items]
Principal amount of debt			$ 44,000
Stated interest rate, percentage			6.43%
Debt maturity month and year		2024-01
Debt Instrument 2 \| Equipment debt obligations
Line Of Credit Facility [Line Items]
Principal amount of debt			$ 30,000
Stated interest rate, percentage			8.77%
Debt maturity month and year		2024-01
December 2014 OTA Finance Program \| De Lage Landen Financial Services, Inc. \| Secured Debt
Line Of Credit Facility [Line Items]
Stated interest rate, percentage						8.36%
Principal amount of secured debt						$ 400,000
"Number of individual OTA customer contracts (contract) \| contract						25