Federal Income Taxes - Summary of Net Change in Deferred Taxes (Details) - USD ($)	12 Months Ended
	May. 31, 2015	May. 31, 2014
Income Tax Disclosure [Abstract]
Net operating loss carryforward	$ (44,121)	$ (28,536)
Depreciation and amortization, financial reporting in excess of tax	(372,843)	(223,339)
Stock compensation costs	$ (14,696)	18,164
Deferred compensation accrual		(244,800)
Allowance for doubtful accounts	$ (12,532)	(17,000)
Valuation allowance		$ 1,546,511
Other	$ 13,429
Total	$ (430,763)	$ 1,051,000