20. Fair Value Measurements (Details) - Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation - USD ($)	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value, at beginning of period	$ 0
New purchases and issuances	0	$ 0
Sales and settlements	0	0
Change in fair value	43,500	(95,000)
Fair value, at end of period	43,500	0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value, at beginning of period	$ 0	95,000
Fair value, at end of period		$ 0