15. Income Taxes (Details-Reconciliation of tax rate)	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Expected federal statutory rate	34.00%	34.00%
State income taxes, net of federal benefit	1.20%	1.80%
Research and development credit	0.30%	0.40%
Foreign earnings taxed at different rates	(1.00%)	(0.70%)
Effect of state operating loss expiration	(2.30%)	(5.50%)
Effect of permanent differences	(0.00%)	3.30%
Impact of foreign exchange rate fluctuations on foreign deferred income taxes	0.00%	(8.50%)
Impact of change in foreign net operating loss	0.00%	(6.30%)
Cancellation of stock options and other true-ups	0.00%	0.00%
True-ups of state deferred assets	(7.40%)	(11.40%)
Total effective rate	24.80%	7.10%
Change in valuation allowance	8.20%	(7.10%)
Totals	33.00%	0.00%