Shareholders' Equity (Details) - USD ($)				3 Months Ended			6 Months Ended		12 Months Ended
	Dec. 22, 2016	Jul. 11, 2016	May 06, 2016	Jun. 30, 2017	Jul. 01, 2016	Apr. 01, 2016	Jun. 30, 2017	Jul. 01, 2016	Dec. 28, 2012	Mar. 31, 2017	May 09, 2016
Equity, Class of Treasury Stock [Line Items]
Equity incentive compensation awards given up									50.00%
Repurchase of common stock			1,500,000
Purchase price per share			$ 14.77
Amount available under repurchase plan			$ 3,100,000	$ 600,000			$ 600,000
Shares repurchased for employee net vesting obligations, shares				21,000	29,000		195,000	284,000
Shares repurchased for employee net vesting obligations, value				$ 400,000	$ 400,000		$ 3,300,000	$ 3,800,000
Weighted average shares outstanding			4.00%			11.00%
Weighted average shares outstanding accretive on an annualized basis			$ 0.04			$ 0.03
Dividend paid, per share	$ 0.26	$ 0.20
Dividend paid, cash value	$ 4,000,000	$ 4,000,000
Dividend declared										$ 0.30
Revolving line of credit facility [Member]
Equity, Class of Treasury Stock [Line Items]
Additional borrowing capacity											$ 25,000,000
Borrowing capacity under credit facility				$ 20,000,000			$ 20,000,000				$ 45,000,000
Chief Executive Officer [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock			697,000
Beneficial owners			11.80%
Chief Operating Officer [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock			732,000
Beneficial owners			4.90%
Chief Financial Officer [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock			73,000
Beneficial owners			0.90%
Share Repurchase Plan [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock				507,000	1,700,000		566,000	2,000,000
Purchase price per share				$ 15.01	$ 14.73		$ 15.55	$ 14.60
Total cost				$ 7,600,000	$ 25,400,000		$ 8,800,000	$ 29,600,000
Stock Appreciation Rights (SARs) [Member]
Equity, Class of Treasury Stock [Line Items]
SARs exchanged									2,900,000
Exercise price									$ 4.00
Target achievement, pro forma Earnings per share									50.00%
Target achievement, pro forma EBITDA									50.00%
Target achievement, Term							6 years
SARs exercised							0