NVE (NVEC) 10-Q 22 Jan 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Dec. 31, 2013	Jan. 17, 2014
Document and Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	31-Dec-13	'
Document Fiscal Period Focus	'Q3	'
Document Fiscal Year Focus	'2014	'
Entity Registrant Name	'NVE CORP /NEW/	'
Entity Central Index Key	'0000724910	'
Current Fiscal Year End Date	'--03-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	4,846,043

Balance_Sheets

Balance Sheets (USD $)	Dec. 31, 2013	Mar. 31, 2013
ASSETS	'	'
Cash and cash equivalents	$1,961,285	$2,509,683
Marketable securities, short term	10,293,147	9,711,029
Accounts receivable, net of allowance for uncollectible accounts of $15,000	1,789,490	2,521,395
Inventories	3,029,903	3,336,592
Deferred tax assets	241,599	0
Prepaid expenses and other assets	1,220,833	958,147
Total current assets	18,536,257	19,036,846
Fixed assets	'	'
Machinery and equipment	8,450,954	8,417,061
Leasehold improvements	1,499,454	1,499,454
Gross fixed assets	9,950,408	9,916,515
Less accumulated depreciation	6,829,363	6,228,122
Net fixed assets	3,121,045	3,688,393
Marketable securities, long term	80,584,799	73,040,257
Total assets	102,242,101	95,765,496
LIABILITIES AND SHAREHOLDERS' EQUITY	'	'
Accounts payable	285,777	422,092
Accrued payroll and other	833,330	918,060
Deferred taxes	0	440,736
Total current liabilities	1,119,107	1,780,888
Deferred Tax Liabilities, Net, Noncurrent	282,342	0
Shareholders' equity	'	'
Common stock, $0.01 par value, 6,000,000 shares authorized; 4,846,043 issued and outstanding as of December 31, 2013; 4,862,436 issued and outstanding as of March 31, 2013	48,460	48,624
Additional paid-in capital	20,245,775	21,200,742
Accumulated other comprehensive income	795,251	1,557,726
Retained earnings	79,751,166	71,177,516
Total shareholders' equity	100,840,652	93,984,608
Total liabilities and shareholders' equity	$102,242,101	$95,765,496

Balance_Sheets_Parenthetical

Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Mar. 31, 2013
Balance Sheets	'	'
Accounts receivable, allowance for uncollectible accounts	$15,000	$15,000
Common stock par value	$0.01	$0.01
Common stock, shares authorized	6,000,000	6,000,000
Common stock shares, issued	4,846,043	4,862,436
Common stock shares, outstanding	4,846,043	4,862,436

Statements_Of_Income

Statements Of Income (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Revenue	'	'	'	'
Product sales	$6,448,407	$5,762,925	$19,654,162	$18,025,002
Contract research and development	25,290	762,296	297,648	1,785,920
Total revenue	6,473,697	6,525,221	19,951,810	19,810,922
Cost of sales	1,449,396	1,738,618	4,331,297	5,147,884
Gross profit	5,024,301	4,786,603	15,620,513	14,663,038
Expenses	'	'	'	'
Selling, general , and administrative	543,698	570,741	1,756,578	1,714,545
Research and development	905,246	501,325	2,744,620	1,801,609
Total expenses	1,448,944	1,072,066	4,501,198	3,516,154
Income from operations	3,575,357	3,714,537	11,119,315	11,146,884
Interest income	530,383	600,395	1,577,524	1,784,963
Income before taxes	4,105,740	4,314,932	12,696,839	12,931,847
Provision for income taxes	1,328,566	1,415,590	4,123,189	4,211,964
Net income	$2,777,174	$2,899,342	$8,573,650	$8,719,883
Net income per share - basic	$0.57	$0.60	$1.77	$1.80
Net income per share - diluted	$0.57	$0.60	$1.76	$1.80
Weighted average shares outstanding	'	'	'	'
Basic	4,842,565	4,847,619	4,852,356	4,832,630
Diluted	4,859,601	4,872,019	4,868,040	4,856,851

Statements_of_Comprehensive_In

Statements of Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Comprehensive Income [Abstract]	'	'	'	'
Net income	$2,777,174	$2,899,342	$8,573,650	$8,719,883
Unrealized loss from marketable securities, net of tax	-151,829	-22,474	-762,475	509,553
Comprehensive income	$2,625,345	$2,876,868	$7,811,175	$9,229,436

Statements_Of_Cash_Flows

Statements Of Cash Flows (USD $)	9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
OPERATING ACTIVITIES	'	'
Net income	$8,573,650	$8,719,883
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation	601,241	457,937
Stock-based compensation	53,200	66,720
Excess tax benefits	-67,044	-2,383
Deferred income taxes	102,118	27,320
Changes in operating assets and liabilities:	'	'
Accounts receivable	731,905	63,060
Inventories	306,689	-526,147
Prepaid expenses and other assets	-262,686	-173,167
Accounts payable and accrued expenses	-221,045	-211,143
Net cash provided by operating activities	9,818,028	8,422,080
INVESTING ACTIVITIES	'	'
Purchases of fixed assets	-33,893	-1,607,130
Purchases of marketable securities	-17,879,202	-17,438,274
Proceeds from maturities and sales of marketable securities	8,555,000	9,850,000
Net cash used in investing activities	-9,358,095	-9,195,404
FINANCING ACTIVITIES	'	'
Net proceeds from sale of common stock	188,030	69,428
Excess tax benefits	67,044	2,383
Repurchase of common stock	-1,263,405	0
Net cash provided by financing activities	-1,008,331	71,811
Increase in cash and cash equivalents	-548,398	-701,513
Cash and cash equivalents at beginning of period	2,509,683	1,544,536
Cash and cash equivalents at end of period	1,961,285	843,023
Supplemental disclosures of cash flow information:	'	'
Cash paid during the period for income taxes	$4,213,033	$4,220,000

Description_Of_Business

Description Of Business	9 Months Ended
	Dec. 31, 2013
Description Of Business [Abstract]	'
Description Of Business	'
	NOTE 1. DESCRIPTION OF BUSINESS
	We develop and sell devices that use spintronics, a nanotechnology that relies on electron spin rather than electron charge to acquire, store, and transmit information.

Interim_Financial_Information

Interim Financial Information	9 Months Ended
	Dec. 31, 2013
Interim Financial Information [Abstract]	'
Interim Financial Information	'
	NOTE 2. INTERIM FINANCIAL INFORMATION
	The accompanying unaudited financial statements of NVE Corporation are prepared consistent with accounting principles generally accepted in the United States and in accordance with Securities and Exchange Commission rules and regulations. In the opinion of management, these financial statements reflect all adjustments, consisting only of normal and recurring adjustments, necessary for a fair presentation of the financial statements. Although we believe that the disclosures are adequate to make the information presented not misleading, it is suggested that these unaudited financial statements be read in conjunction with the audited financial statements and the notes included in our latest annual financial statements included in our Annual Report on Form 10-K for the fiscal year ended March 31, 2013. The results of operations for the quarter or nine months ended December 31, 2013 are not necessarily indicative of the results that may be expected for the full fiscal year ending March 31, 2014.

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	9 Months Ended
	Dec. 31, 2013
Recent Accounting Pronouncements [Abstract]	'
Recent Accounting Pronouncements	'
	NOTE 3. RECENT ACCOUNTING PRONOUNCEMENTS
	We have adopted all applicable recently issued accounting pronouncements.

Net_Income_Per_Share

Net Income Per Share	9 Months Ended
	Dec. 31, 2013
Net Income Per Share [Abstract]	'
Net Income Per Share	'
	NOTE 4. NET INCOME PER SHARE
	Net income per basic share is computed based on the weighted-average number of common shares issued and outstanding during each period. Net income per diluted share amounts assume conversion, exercise or issuance of all potential common stock instruments (stock options and warrants). Stock options totaling 5,000 for the quarter and nine months ended December 31, 2012 were not included in the computation of diluted earnings per share because the exercise prices of the options and warrants were greater than the market price of the common stock and are considered anti-dilutive. The following table reflects the components of common shares outstanding:
		Quarter Ended Dec. 31
		2013	2012
	Weighted average common shares outstanding – basic	4,842,565	4,847,619
	Effect of dilutive securities:
	Stock options	16,416	22,594
	Warrants	620	1,806
	Shares used in computing net income per share – diluted	4,859,601	4,872,019
		Nine Months Ended Dec. 31
		2013	2012
	Weighted average common shares outstanding – basic	4,852,356	4,832,630
	Effect of dilutive securities:
	Stock options	15,128	22,430
	Warrants	556	1,791
	Shares used in computing net income per share – diluted	4,868,040	4,856,851

Marketable_Securities

Marketable Securities	9 Months Ended
	Dec. 31, 2013
Marketable Securities [Abstract]	'
Marketable Securities	'
	NOTE 5. MARKETABLE SECURITIES
	Marketable securities with remaining maturities less than one year are classified as short-term, and those with remaining maturities greater than one year are classified as long-term. The fair value of our marketable securities as of December 31, 2013, by maturity, were as follows:
	Total			<1 Year			1–3 Years			3–5 Years
	$	90,877,946		$	10,293,147		$	37,031,172		$	43,553,627
	As of December 31 and March 31, 2013, our marketable securities were as follows:
		As of December 31, 2013													As of March 31, 2013
					Gross			Gross				Fair						Gross			Gross			Fair
		Adjusted			Unrealized			Unrealized				Market			Adjusted			Unrealized			Unrealized			Market
		Cost			Gains			Losses				Value			Cost			Gains			Losses			Value
	Corporate bonds	$	84,677,016		$	1,716,210		$	(493,700	)		$	85,899,526		$	72,923,502		$	2,378,845		$	(4,187	)	$	75,298,160
	Municipal bonds	4,951,910			30,521			(4,011		)		4,978,420			7,381,223			81,058			(9,155		)	7,453,126
	Total	$	89,628,926		$	1,746,731		$	(497,711	)		$	90,877,946		$	80,304,725		$	2,459,903		$	(13,342	)	$	82,751,286
	The following table presents the gross unrealized losses and fair value of our investments with unrealized losses, aggregated by investment category and length of time that individual securities had been in a continuous unrealized loss position as of December 31 and March 31, 2013:
			Less Than 12 Months							12 Months or Greater							Total
			Fair			Gross				Fair			Gross				Fair			Gross
			Market			Unrealized				Market			Unrealized				Market			Unrealized
			Value			Losses				Value			Losses				Value			Losses
	As of December 31, 2013
		Corporate bonds	$	32,852,596		$	(493,700	)		$	-		$	-			$	32,852,596		$	(493,700	)
		Municipal bonds	1,429,217			(4,011		)		-			-				1,429,217			(4,011		)
		Total	$	34,281,813		$	(497,711	)		$	-		$	-			$	34,281,813		$	(497,711	)
	As of March 31, 2013
		Corporate bonds	$	1,171,976		$	(4,187	)		$	-		$	-			$	1,171,976		$	(4,187	)
		Municipal bonds	508,607			(9,155		)		-			-				508,607			(9,155		)
		Total	$	1,680,583		$	(13,342	)		$	-		$	-			$	1,680,583		$	(13,342	)
	Gross unrealized losses totaled $497,711 as of December 31, 2013, and were attributed to ten corporate bonds and one municipal bond out of a portfolio of 41 bonds. The gross unrealized losses were due to market-price decreases and rating downgrades after the bonds were purchased, and none had been in a continuous unrealized loss position for 12 months or greater. A substantial majority of the bonds we held were rated by Moody's or Standard and Poor's and had investment-grade credit ratings. For each bond, including each bond with an unrealized loss, we expect to recover the entire cost basis of each security based on our consideration of factors including their credit ratings, the underlying ratings of insured bonds, and historical default rates for securities of comparable credit rating. Because we expect to recover the entire cost basis of each of the securities, and because we do not intend to sell the securities and it is not more likely than not that we will be required to sell the securities before recovery of the cost basis, which may be maturity, we did not consider any of our marketable securities to be other-than-temporarily impaired at December 31, 2013.

Inventories

Inventories	9 Months Ended
	Dec. 31, 2013
Inventories [Abstract]	'
Inventories	'
	NOTE 6. INVENTORIES
	Inventories consisted of the following:
		Dec. 31			31-Mar
		2013			2013
	Raw materials	$	996,686		$	1,312,011
	Work in process		1,502,406			1,533,951
	Finished goods	825,811			775,630
			3,324,903			3,621,592
	Less inventory reserve	(295,000		)	(285,000		)
	Total inventories	$	3,029,903		$	3,336,592

StockBased_Compensation

Stock-Based Compensation	9 Months Ended
	Dec. 31, 2013
Stock-Based Compensation [Abstract]	'
Stock-Based Compensation	'
	NOTE 7. STOCK-BASED COMPENSATION
	Stock-based compensation expense was $53,200 for the first nine months of fiscal 2014, and $66,720 for the first nine months of fiscal 2013. Stock-based compensation expenses for the nine months ended December 31, 2013 and 2012 were non-cash, and due to the issuance of automatic stock options to our non-employee directors on their reelection to our Board. We calculate the share-based compensation expense using the Black-Scholes standard option-pricing model.

Income_Taxes

Income Taxes	9 Months Ended
	Dec. 31, 2013
Income Taxes [Abstract]	'
Income Taxes	'
	NOTE 8. INCOME TAXES
	Deferred income taxes reflect the net tax effects of temporary differences between the carrying amount of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes.
	We had no unrecognized tax benefits as of December 31, 2013, and we do not expect any significant unrecognized tax benefits within 12 months of the reporting date. We recognize interest and penalties related to income tax matters in income tax expense. As of December 31, 2013 we had no accrued interest related to uncertain tax positions. The tax years 1999 through 2012 remain open to examination by the major taxing jurisdictions to which we are subject.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Dec. 31, 2013
Fair Value Measurements [Abstract]	'
Fair Value Measurements	'
	NOTE 9. FAIR VALUE MEASUREMENTS
	Generally accepted accounting principles establish a framework for measuring fair value, provide a definition of fair value and prescribe required disclosures about fair-value measurements. Generally accepted accounting principles define fair value as the price that would be received to sell an asset or paid to transfer a liability. Fair value is a market-based measurement that should be determined using assumptions that market participants would use in pricing an asset or liability. Generally accepted accounting principles utilize a valuation hierarchy for disclosure of fair value measurements. The categorization within the valuation hierarchy is based on the lowest level of input that is significant to the fair value measurement. The categories within the valuation hierarchy are described as follows:
	Level 1 – Financial instruments with quoted prices in active markets for identical assets or liabilities. Our Level 1 financial instruments consist of publicly-traded marketable corporate debt securities, which are classified as available-for-sale. On the balance sheets, these securities are included in "Marketable securities, short term" and "Marketable securities, long term." The fair value of our Level 1 marketable securities was $85,899,526 at December 31, 2013 and $75,298,160 at March 31, 2013.
	Level 2 – Financial instruments with quoted prices in active markets for similar assets or liabilities. Level 2 fair value measurements are determined using either prices for similar instruments or inputs that are either directly or indirectly observable, such as interest rates. Our Level 2 financial instruments consist of municipal debt securities, which are classified as available-for-sale. On the balance sheets, these securities are included in "Marketable securities, short term" and "Marketable securities, long term." The fair value of our Level 2 marketable securities was $4,978,420 at December 31, 2013 and $7,453,126 at March 31, 2013.
	Level 3 – Inputs to the fair value measurement are unobservable inputs or valuation techniques. We do not have any financial assets or liabilities being measured at fair value that are classified as Level 3 financial instruments.

Stock_Repurchase_Plan

Stock Repurchase Plan	9 Months Ended
	Dec. 31, 2013
Stock Repurchase Plan [Abstract]	'
Stock Repurchase Plan	'
	NOTE 10. STOCK REPURCHASE PLAN
	We did not repurchase any of our Common Stock during the quarter ended December 31, 2013, and $1,263,405 in the nine months ended December 31, 2013. The repurchases were under a program announced January 21, 2009 authorizing the repurchase of up to $2,500,000 of our Common Stock, $1,236,595 of which remained available as of December 31, 2013. The repurchase program may be modified or discontinued at any time without notice.

Net_Income_Per_Share_Tables

Net Income Per Share (Tables)	9 Months Ended
	Dec. 31, 2013
Net Income Per Share [Abstract]	'
Schedule Of Weighted Average Number Of Shares	'
		Quarter Ended Dec. 31
		2013	2012
	Weighted average common shares outstanding – basic	4,842,565	4,847,619
	Effect of dilutive securities:
	Stock options	16,416	22,594
	Warrants	620	1,806
	Shares used in computing net income per share – diluted	4,859,601	4,872,019
		Nine Months Ended Dec. 31
		2013	2012
	Weighted average common shares outstanding – basic	4,852,356	4,832,630
	Effect of dilutive securities:
	Stock options	15,128	22,430
	Warrants	556	1,791
	Shares used in computing net income per share – diluted	4,868,040	4,856,851

Marketable_Securities_Tables

Marketable Securities (Tables)	9 Months Ended
	Dec. 31, 2013
Marketable Securities [Abstract]	'
Fair Value Of Marketable Securities By Maturity	'
	Total			<1 Year			1–3 Years			3–5 Years
	$	90,877,946		$	10,293,147		$	37,031,172		$	43,553,627
Amortized Cost And Approximate Fair Values Of Marketable Securities	'
		As of December 31, 2013													As of March 31, 2013
					Gross			Gross				Fair						Gross			Gross			Fair
		Adjusted			Unrealized			Unrealized				Market			Adjusted			Unrealized			Unrealized			Market
		Cost			Gains			Losses				Value			Cost			Gains			Losses			Value
	Corporate bonds	$	84,677,016		$	1,716,210		$	(493,700	)		$	85,899,526		$	72,923,502		$	2,378,845		$	(4,187	)	$	75,298,160
	Municipal bonds	4,951,910			30,521			(4,011		)		4,978,420			7,381,223			81,058			(9,155		)	7,453,126
	Total	$	89,628,926		$	1,746,731		$	(497,711	)		$	90,877,946		$	80,304,725		$	2,459,903		$	(13,342	)	$	82,751,286
Gross Unrealized Losses And Fair Values Of Investments By Investment Category And Length Of Time	'
			Less Than 12 Months							12 Months or Greater							Total
			Fair			Gross				Fair			Gross				Fair			Gross
			Market			Unrealized				Market			Unrealized				Market			Unrealized
			Value			Losses				Value			Losses				Value			Losses
	As of December 31, 2013
		Corporate bonds	$	32,852,596		$	(493,700	)		$	-		$	-			$	32,852,596		$	(493,700	)
		Municipal bonds	1,429,217			(4,011		)		-			-				1,429,217			(4,011		)
		Total	$	34,281,813		$	(497,711	)		$	-		$	-			$	34,281,813		$	(497,711	)
	As of March 31, 2013
		Corporate bonds	$	1,171,976		$	(4,187	)		$	-		$	-			$	1,171,976		$	(4,187	)
		Municipal bonds	508,607			(9,155		)		-			-				508,607			(9,155		)
		Total	$	1,680,583		$	(13,342	)		$	-		$	-			$	1,680,583		$	(13,342	)

Inventories_Tables

Inventories (Tables)	9 Months Ended
	Dec. 31, 2013
Inventories [Abstract]	'
Schedule Of Inventories	'
		Dec. 31			31-Mar
		2013			2013
	Raw materials	$	996,686		$	1,312,011
	Work in process		1,502,406			1,533,951
	Finished goods	825,811			775,630
			3,324,903			3,621,592
	Less inventory reserve	(295,000		)	(285,000		)
	Total inventories	$	3,029,903		$	3,336,592

Net_Income_Per_Share_Details

Net Income Per Share (Details)	3 Months Ended		9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Net Income Per Share [Abstract]	'	'	'	'
Weighted average common shares outstanding - basic	4,842,565	4,847,619	4,852,356	4,832,630
Stock options	16,416	22,594	15,128	22,430
Warrants	620	1,806	556	1,791
Shares used in computing net income per share - diluted	4,859,601	4,872,019	4,868,040	4,856,851
Stock options and warrants not included in computation of diluted earnings per share	'	5,000	'	5,000

Marketable_Securities_Narrativ

Marketable Securities (Narrative) (Details) (USD $)	Dec. 31, 2013	Mar. 31, 2013
Schedule of Investments [Line Items]	'	'
Gross unrealized losses	$497,711	$13,342
Municipal Bonds [Member]	'	'
Schedule of Investments [Line Items]	'	'
Gross unrealized losses	$4,011	$9,155

Marketable_Securities_Fair_Val

Marketable Securities (Fair Value Of Marketable Securities By Maturity) (Details) (USD $)	Dec. 31, 2013	Mar. 31, 2013
Marketable Securities [Abstract]	'	'
Marketable securities, Total, fair value	$90,877,946	$82,751,286
Marketable securities, debt maturities due within one year, fair value	10,293,147	'
Marketable securities, debt maturities due after one year through three years, fair value	37,031,172	'
Marketable securities, debt maturities due after three years through five years, fair value	$43,553,627	'

Marketable_Securities_Amortize

Marketable Securities (Amortized Cost And Approximate Fair Values Of Marketable Securities) (Details) (USD $)	Dec. 31, 2013	Mar. 31, 2013
Schedule of Investments [Line Items]	'	'
Adjusted Cost	$89,628,926	$80,304,725
Gross Unrealized Gains	1,746,731	2,459,903
Gross Unrealized Losses	-497,711	-13,342
Fair Market Value	90,877,946	82,751,286
Corporate Bonds [Member]	'	'
Schedule of Investments [Line Items]	'	'
Adjusted Cost	84,677,016	72,923,502
Gross Unrealized Gains	1,716,210	2,378,845
Gross Unrealized Losses	-493,700	-4,187
Fair Market Value	85,899,526	75,298,160
Municipal Bonds [Member]	'	'
Schedule of Investments [Line Items]	'	'
Adjusted Cost	4,951,910	7,381,223
Gross Unrealized Gains	30,521	81,058
Gross Unrealized Losses	-4,011	-9,155
Fair Market Value	$4,978,420	$7,453,126

Marketable_Securities_Gross_Un

Marketable Securities (Gross Unrealized Losses And Fair Values Of Investments By Investment Category And Length Of Time) (Details) (USD $)	Dec. 31, 2013	Mar. 31, 2013
Schedule of Investments [Line Items]	'	'
Marketable Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Market Value	$34,281,813	$1,680,583
Marketable Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	-497,711	-13,342
Marketable Securities, Continuous Unrealized Loss Position, Fair Market Value, Total	34,281,813	1,680,583
Marketable Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses, Total	-497,711	-13,342
Corporate Bonds [Member]	'	'
Schedule of Investments [Line Items]	'	'
Marketable Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Market Value	32,852,596	1,171,976
Marketable Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	-493,700	-4,187
Marketable Securities, Continuous Unrealized Loss Position, Fair Market Value, Total	32,852,596	1,171,976
Marketable Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses, Total	-493,700	-4,187
Municipal Bonds [Member]	'	'
Schedule of Investments [Line Items]	'	'
Marketable Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Market Value	1,429,217	508,607
Marketable Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	-4,011	-9,155
Marketable Securities, Continuous Unrealized Loss Position, Fair Market Value, Total	1,429,217	508,607
Marketable Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses, Total	($4,011)	($9,155)

Inventories_Details

Inventories (Details) (USD $)	Dec. 31, 2013	Mar. 31, 2013
Inventories [Abstract]	'	'
Raw materials	$996,686	$1,312,011
Work in process	1,502,406	1,533,951
Finished goods	825,811	775,630
Inventory, Gross, Total	3,324,903	3,621,592
Less inventory reserve	-295,000	-285,000
Total inventories	$3,029,903	$3,336,592

StockBased_Compensation_Detail

Stock-Based Compensation (Details) (USD $)	9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Stock-Based Compensation [Abstract]	'	'
Share-based compensation	$53,200	$66,720

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	Dec. 31, 2013	Mar. 31, 2013
Available-for-sale securities, fair value	$90,877,946	$82,751,286
Fair Value, Inputs, Level 1 [Member]	'	'
Available-for-sale securities, fair value	85,899,526	75,298,160
Fair Value, Inputs, Level 2 [Member]	'	'
Available-for-sale securities, fair value	$4,978,420	$7,453,126

Stock_Repurchase_Plan_Details

Stock Repurchase Plan (Details) (USD $)	1 Months Ended	9 Months Ended
	Jan. 21, 2009	Dec. 31, 2013	Dec. 31, 2012
Stock Repurchase Plan [Abstract]	'	'	'
Repurchase of common stock	'	$1,263,405	$0
Authorized common stock for repurchase	2,500,000	'	'
Remaining authorized common stock for repurchase	'	$1,236,595	'