Consolidated Statements of Share Owners' Equity - USD ($) $ in Thousands	Total	Class A Common Stock	Class B Common Stock	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Additional Paid-In Capital	Retained Earnings	Retained Earnings Class A Common Stock	Retained Earnings Class B Common Stock	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Share Owner's Equity at Jun. 30, 2013	$ 404,506			$ 601	$ 1,550	$ 4,448	$ 462,957			$ (3,477)	$ (61,573)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	33,461						33,461
Other comprehensive income (loss), Net of Tax	5,917									5,917
Issuance of non-restricted stock (20,000 shares in 2014, 29,000 shares in 2015, 44,000 shares in 2016)	57					(196)					253
Conversion of Class A to Class B common stock (813,000 shares in 2014, 10,826,000 shares in 2015, 94,000 shares in 2016)	0			(41)	41
Compensation expense related to stock incentive plans	7,018					7,018
Performance share issuance (337,000 shares in 2014, 407,000 shares in 2015, 235,000 shares in 2016)	(1,899)					(5,001)	(1,851)				4,953
Dividends declared:
Dividends declared (Class A $0.18 2014, $0.195 in 2015, $0.22 in 2016, Class B $0.20 per share in 2014, $0.20 per share in 2015, $0.22 per share in 2016)		$ (1,437)	$ (6,090)					$ (1,437)	$ (6,090)
Share Owner's Equity at Jun. 30, 2014	441,533			560	1,591	6,269	487,040			2,440	(56,367)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distribution to Kimball Electronics Inc.	(300,244)					(508)	(303,215)			3,479
Net income	20,300						20,300
Other comprehensive income (loss), Net of Tax	(4,690)									(4,690)
Issuance of non-restricted stock (20,000 shares in 2014, 29,000 shares in 2015, 44,000 shares in 2016)	(169)					(605)					436
Conversion of Class A to Class B common stock (813,000 shares in 2014, 10,826,000 shares in 2015, 94,000 shares in 2016)	0			(541)	541
Compensation expense related to stock incentive plans	6,414					6,414
Performance share issuance (337,000 shares in 2014, 407,000 shares in 2015, 235,000 shares in 2016)	(2,498)					(7,452)	(2,048)				7,002
Vesting of restricted share units (31,000 shares in 2015, 56,000 shares in 2016)	(115)					(673)					558
Repurchase of Common Stock (991,000 shares in 2015, 736,000 in 2016)	(11,321)										(11,321)
Dividends declared:
Dividends declared (Class A $0.18 2014, $0.195 in 2015, $0.22 in 2016, Class B $0.20 per share in 2014, $0.20 per share in 2015, $0.22 per share in 2016)		$ (536)	$ (7,169)					$ (536)	$ (7,169)
Share Owner's Equity at Jun. 30, 2015	141,505			19	2,132	3,445	194,372			1,229	(59,692)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distribution to Kimball Electronics Inc.	(4)						(4)
Net income	21,156						21,156
Other comprehensive income (loss), Net of Tax	82									82
Issuance of non-restricted stock (20,000 shares in 2014, 29,000 shares in 2015, 44,000 shares in 2016)	(108)					(1,058)					950
Conversion of Class A to Class B common stock (813,000 shares in 2014, 10,826,000 shares in 2015, 94,000 shares in 2016)	0			(5)	5
Compensation expense related to stock incentive plans	5,558					5,558
Performance share issuance (337,000 shares in 2014, 407,000 shares in 2015, 235,000 shares in 2016)	(1,153)					(3,445)	(2,132)				4,424
Vesting of restricted share units (31,000 shares in 2015, 56,000 shares in 2016)	(194)					(1,583)					1,389
Repurchase of Common Stock (991,000 shares in 2015, 736,000 in 2016)	(8,686)										(8,686)
Dividends declared:
Dividends declared (Class A $0.18 2014, $0.195 in 2015, $0.22 in 2016, Class B $0.20 per share in 2014, $0.20 per share in 2015, $0.22 per share in 2016)	(8,288)						(8,288)
Share Owner's Equity at Jun. 30, 2016	$ 149,868			$ 14	$ 2,137	$ 2,917	$ 205,104			$ 1,311	$ (61,615)