5. EQUITY TRANSACTIONS (Details - Options exercisable) - Stock Options [Member] - $ / shares	12 Months Ended
Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Stock options outstanding	409,047	432,047	438,547
Outstanding Weighted Average Exercise Price	$ 9.51	$ 10.98	$ 10.94
Stock options exercisable	382,047	414,547
Stock options exercisable Weighted Average Exercise Price	$ 10.07	$ 11.24
$1.68 - $9.50 [Member]
Stock options outstanding	211,047
Weighted Average Remaining Life (Years)	6 years 3 months 3 days
Outstanding Weighted Average Exercise Price	$ 5.42
Stock options exercisable	184,047
Stock options exercisable Weighted Average Exercise Price	$ 5.96
$12.50 [Member]
Stock options outstanding	163,000
Weighted Average Remaining Life (Years)	2 years 4 months 21 days
Outstanding Weighted Average Exercise Price	$ 12.5
Stock options exercisable	163,000
Stock options exercisable Weighted Average Exercise Price	$ 12.5
$20.50 [Member]
Stock options outstanding	35,000
Weighted Average Remaining Life (Years)	5 months 1 day
Outstanding Weighted Average Exercise Price	$ 19.03
Stock options exercisable	35,000
Stock options exercisable Weighted Average Exercise Price	$ 19.03

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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