15. Stock Option Plans (Details) - Schedule of Nonvested Share Activity - $ / shares	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Schedule of Nonvested Share Activity [Abstract]
Non-vested at April 1, 2017	45,600
Non-vested at April 1, 2017	$ 5.76
Granted	7,500	0
Granted	$ 3.31
Vested	(11,400)
Vested	$ 5.73
Forfeited	(3,200)
Forfeited	$ 5.85
Non-vested at March 31, 2018	38,500	45,600
Non-vested at March 31, 2018	$ 5.28	$ 5.76