7. Income Taxes (Details) - Schedule of Deferred Tax Assets and Liabilities - USD ($)	Mar. 31, 2016	Mar. 31, 2015
Deferred tax assets:
Net operating loss carryforwards	$ 1,802,492	$ 2,865,606
Tax credits	329,032	329,032
Charitable contributions	51	17
Allowance for doubtful accounts	2,550	8,499
Reserve for inventory obsolescence	98,614	78,024
Inventory capitalization	69,918	76,820
Deferred payroll	88,288	29,264
Vacation accrual	134,116	111,880
Warranty reserve	70,765	47,754
Deferred revenues	75,310	51,812
Stock options	23,544	23,561
Non-compete agreement	7,889	9,868
AMT credit	52,123	0
Depreciation	26,721	(52,379)
Deferred tax asset	2,781,413	3,579,758
Less valuation allowance	(137,780)	(137,780)
Deferred tax asset, net	2,643,633	3,441,978
Deferred tax asset – current	578,507	1,064,395
Deferred tax asset – long-term	2,065,126	2,377,583
Total	$ 2,643,633	$ 3,441,978