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STOCK PLANS AND STOCK-BASED COMPENSATION (Details) - $ / shares	3 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Number of Shares
Balance, beginning of period	141,365	220,654
Options exercised		(16,511)
Expired	(2,500)	(5,000)
Balance, end of period	138,865	199,143
Weighted Average Exercise Price
Balance, beginning of period	$ 3.77	$ 4.74
Options exercised	0	4.19
Expired	8.12	14.52
Balance, end of period	$ 3.69	$ 4.54

X

- Definition

Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(4)
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- Definition

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

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- Definition

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

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Number of share options (or share units) exercised during the current period.

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