Earnings Per Share (Narrative) (Details) - USD ($)			3 Months Ended		6 Months Ended
	Oct. 01, 2015	Oct. 01, 2014	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2015	Oct. 31, 2014
Earnings Per Share [Line Items]
Common stock were outstanding			368,963	90,354	368,963	90,354
Options granted					285,000	0
Stock option expense			$ 402,469	$ 4,559	$ 407,028	$ 22,931
Share-based compensation expense					415,628	42,805
Balance of unrecognized compensation expense related to stock options plans			580,372	30,680	580,372	30,680
Restricted stock expense					11,692	12,000
Employee Stock Purchase Plan [Member]
Earnings Per Share [Line Items]
ESPP compensation expense			$ 3,010	$ 10,208	$ 8,600	$ 19,874
Shares of common stock for issuance			500,000		500,000
Additional shares of common stock for issuance each fiscal year					25,000
Shares issued			2,185	5,839	6,332	9,629
Stockholders' equity relating to purchases under the ESPP			$ 11,602	$ 34,684	$ 34,338	$ 84,336
Restricted Stock [Member]
Earnings Per Share [Line Items]
Shares of restricted stock granted	10,000
Restricted stock expense			11,692		$ 11,692
Restricted stock, fully vest date					Apr. 01, 2016
Balance of unrecognized compensation expense related to restricted stock award			57,708		$ 57,708
Restricted Stock [Member] | 2013 Non-Employee Director Restricted Stock Plan [Member]
Earnings Per Share [Line Items]
Shares of restricted stock granted		1,750
Shares of restricted stock vested					8,750
Restricted stock expense			$ 0	$ 10,254	$ 0	$ 10,254
Restricted stock, vesting period					6 months
Restricted stock, fully vest date					Apr. 01, 2015