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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2018

Summary of Significant Accounting Policies [Abstract]

Reconciliation of basic and diluted net income per share

The following presents a reconciliation of basic and diluted net income per share.

		Years Ended March 31,
		2018				2017				2016
Net income		$	16,316,000			$	37,573,000			$	10,563,000
Basic shares			18,854,993				18,608,812				18,233,163
Effect of dilutive stock options and warrants			659,782				809,894				832,930
Diluted shares			19,514,775				19,418,706				19,066,093
Net income per share:
Basic net income per share		$	0.87			$	2.02			$	0.58
Diluted net income per share		$	0.84			$	1.93			$	0.55

Black-Scholes option pricing model assumptions used to derive weighted average fair value of stock options granted

The following summarizes the Black-Scholes option-pricing model assumptions used to derive the weighted average fair value of the stock options granted during the periods noted.

		Years Ended March 31,
		2018				2017				2016
Weighted average risk free interest rate			1.92	%			1.39	%			1.73	%
Weighted average expected holding period (years)			5.82				5.84				5.76
Weighted average expected volatility			47.28	%			47.42	%			46.84	%
Weighted average expected dividend yield			-				-				-
Weighted average fair value of options granted		$	12.63			$	13.09			$	14.14

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ 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 (f)(2)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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