Stock-Based Compensation (Narrative) (Details) (USD $)	12 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Stock-based compensation expense	$ 66,720	$ 80,160	$ 76,720
Vesting period	5 years
Dividend yield	0.00%	0.00%	0.00%
Deferred tax assets increased from stock-based compensation	24,239	29,122
Intrinsic value of options exercised	1,881,138
Intrinsic value of options outstanding	1,290,440
Fair value of option grants	$ 66,720
Maximum [Member]
Exercisable lives	10 years
Minimum [Member]
Exercisable lives	1 year
Options [Member]
Weighted-average exercisable life	4 years 7 months 6 days	3 years 8 months 12 days	4 years 3 months 18 days
Warrants [Member]
Weighted-average exercisable life	10 months 24 days	10 months 24 days	1 year 10 months 24 days

This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

+ References+ Details