14. Stock Option Plans (Details) - Schedule of Share-based Compensation, Stock Options, Activity (USD $)	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
14. Stock Option Plans (Details) - Schedule of Share-based Compensation, Stock Options, Activity [Line Items]
Options granted	5,000
Number of Options [Member]
14. Stock Option Plans (Details) - Schedule of Share-based Compensation, Stock Options, Activity [Line Items]
Outstanding options	201,100	248,850
Options Vested	71,100	119,760
Options granted	10,000	18,000
Options exercised	(39,100)	(38,000)
Options canceled/forfeited	(57,400)	(27,750)
Outstanding options	114,600	201,100
Average Exercise Price [Member]
14. Stock Option Plans (Details) - Schedule of Share-based Compensation, Stock Options, Activity [Line Items]
Outstanding options (in Dollars per share)	$ 5.14	$ 4.69
Options Vested (in Dollars per share)	$ 4.29	$ 4.29
Options granted (in Dollars per share)	$ 3.50	$ 7.28
Options exercised (in Dollars per share)	$ 3.53	$ 3.28
Options canceled/forfeited (in Dollars per share)	$ 5.17	$ 5.04
Outstanding options (in Dollars per share)	$ 5.53	$ 5.14
Average Remaining Contractual Term [Member]
14. Stock Option Plans (Details) - Schedule of Share-based Compensation, Stock Options, Activity [Line Items]
Outstanding options	2 years	2 years 36 days
Options Vested	1 year 146 days	1 year 109 days
Outstanding options	2 years	2 years 36 days
Aggregate Intrinsic Value [Member]
14. Stock Option Plans (Details) - Schedule of Share-based Compensation, Stock Options, Activity [Line Items]
Options Vested (in Dollars)	$ 0	$ 263,099
Outstanding options (in Dollars)	$ 0	$ 321,114