CORRECTION OF AN ERROR (Schedule of Effect of Correction) (Details) - USD ($)		3 Months Ended				9 Months Ended		12 Months Ended
	Mar. 25, 2016	Dec. 28, 2018	Dec. 29, 2017	Sep. 29, 2017	Jun. 30, 2017	Dec. 28, 2018	Dec. 29, 2017	Mar. 31, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Correction of an error: recognition of stock option compensation expense						$ 26,802	$ 25,182
Net income		$ 788,880	$ 474,908			$ 3,994,469	1,345,191
Capital in Excess of Par Value [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Balances Beginning	$ 2,744,573		3,762,012	$ 3,759,214	$ 3,739,628		3,739,628	$ 2,744,573
Correction of an error: recognition of stock option compensation expense	16,788		2,798	2,798	2,798			995,055
Restated								3,739,628
Net income
Dividend distribution paid
Balances Ending	2,744,573		3,764,810	3,762,012	3,759,214		3,764,810	3,739,628
Retained Earnings [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Balances Beginning	10,812,960		11,586,296	11,021,636	11,291,881		11,291,881	10,812,960
Correction of an error: recognition of stock option compensation expense								(995,055)
Restated			474,908	564,660	305,622			9,817,905
Net income								1,473,976
Dividend distribution paid					(575,867)
Balances Ending	$ 10,812,960		$ 12,061,204	$ 11,586,296	$ 11,021,636		$ 12,061,204	$ 11,291,881