Consolidated Statements of Changes in Shareholders' Equity - USD ($)		Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Sep. 28, 2013		2,927,416
Balance at Sep. 28, 2013		$ 2,626,526	$ 872,494	$ 26,828,012	$ (213,251)	$ 30,113,781
Net income				2,590,767		2,590,767
Foreign currency translation gain (loss)					(794,177)	(794,177)
Common stock issued to Directors (in shares)		8,500
Common stock issued to Directors		$ 164,735				$ 164,735
Common stock issued on exercise of stock options (in shares)		26,091				26,091
Common stock issued on exercise of stock options		$ 273,397				$ 273,397
Stock option compensation expense			26,637			26,637
Tax benefits for stock options exercised			7,703			7,703
Cash dividends paid or declared				(1,683,011)		(1,683,011)
Balance (in shares) at Sep. 27, 2014		2,962,007
Balance at Sep. 27, 2014		$ 3,064,658	906,834	27,735,768	(1,007,428)	30,699,832
Net income				3,993,398		3,993,398
Foreign currency translation gain (loss)					(1,539,111)	(1,539,111)
Common stock issued to Directors (in shares)		9,500
Common stock issued to Directors		$ 175,715				$ 175,715
Common stock issued on exercise of stock options (in shares)		19,685				19,685
Common stock issued on exercise of stock options		$ 180,708				$ 180,708
Stock option compensation expense			9,041			9,041
Cash dividends paid or declared	[1]			(4,780,572)		$ (4,780,572)
Balance (in shares) at Oct. 03, 2015		2,737,468				2,737,468
Balance at Oct. 03, 2015				26,848,299	(2,546,539)	$ 24,301,760
Stock repurchases (in shares)		(253,724)
Stock repurchases		$ (3,421,081)	(915,875)	(100,295)		(4,437,251)
Net income				4,247,331		4,247,331
Foreign currency translation gain (loss)					44,562	44,562
Common stock issued to Directors (in shares)		9,000
Common stock issued to Directors		$ 169,380				$ 169,380
Common stock issued on exercise of stock options (in shares)		21,157				21,157
Common stock issued on exercise of stock options		$ 204,423				$ 204,423
Tax benefits for stock options exercised			6,025			6,025
Cash dividends paid or declared				(1,752,004)		$ (1,752,004)
Balance (in shares) at Oct. 01, 2016		2,755,625				2,755,625
Balance at Oct. 01, 2016		$ 373,803	6,025	29,133,746	(2,501,977)	$ 27,011,597
Stock repurchases (in shares)		(12,000)
Stock repurchases				$ (209,880)		$ (209,880)

[1] Dividends per share for fiscal year 2015 include a special dividend of $1.00 per share paid on January 7, 2015.