Summary of Significant Accounting Policies, Part 5 (Details) (USD $)	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Income Tax [Line Items]
Accrued interest or penalties related to uncertain tax positions	$ 0	$ 0
Income tax expense	50,770	47,712	28,837
Net operating loss carryforwards	32,000,000
Percentage change in ownership of an entity (in hundredths)	50.00%
Period of change in ownership of entity	3 years
Operating loss carryforwards limitation on use before December 2006	750,000
Advertising Expenses [Abstract]
Advertising costs	519,000	571,000	181,000
Options and Unvested Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of anti-dilutive shares excluded from computation of diluted loss per common share (in shares)	545,000	909,000	2,121,000
Range of exercise prices - lower range limit (in dollars per share)	$ 0.77	$ 0.77	$ 0.71
Range of exercise prices - upper range limit (in dollars per share)	$ 2.06	$ 4.20	$ 6.61
Internal Revenue Service (IRS) [Member]
Income Tax [Line Items]
Tax years remain open to examination	2009 through 2013
Net operating loss carryforwards	32,000,000
Foreign Tax Authority [Member]
Income Tax [Line Items]
Tax years remain open to examination	2007 through 2013
Net operating loss carryforwards	$ 29,000