14. Stock Option Plans (Details) - Schedule of Share-based Compensation, Stock Options, Activity - USD ($)	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Schedule of Share-based Compensation, Stock Options, Activity [Abstract]
Options Outstanding, Number of Options	79,000	85,000	71,500
Options Outstanding, Average Exercise Price	$ 5.26	$ 5.33	$ 6.06
Options Outstanding, Average Remaining Contractual Term	2 years 6 months	3 years 146 days
Options Outstanding, Aggregate Intrinsic Value	$ 28,900	$ 9,000
Vested Options:
Vested Options, Number of Options	33,800	26,000
Vested Options, Average Exercise Price	$ 4.59	$ 4.38
Vested Options, Average Remaining Contractual Term	1 year 328 days	2 years 36 days
Vested Options, Aggregate Intrinsic Value	$ 28,460	$ 9,000
Options Granted, Number of Options	0	51,000
Options Granted, Average Exercise Price	$ 0	$ 5.85
Options Exercised, Number of Options	0	0
Options Exercised, Average Exercise Price	$ 0	$ 0
Options Canceled/Forfeited, Number of Options	(6,000)	(37,500)
Options Canceled/Forfeited, Average Exercise Price	$ 6.34	$ 7.43