SHAREHOLDERS' EQUITY - Narrative (Details) - USD ($)						3 Months Ended	6 Months Ended
	Aug. 08, 2017	Jun. 28, 2017	Jun. 02, 2017	Mar. 29, 2017	Feb. 23, 2017	Jun. 30, 2017	Jun. 30, 2017	Aug. 31, 2016	Aug. 28, 2006	Jun. 30, 2004
Class of Stock [Line Items]
Stock repurchased during period, value							$ 64,000
Treasury stock, shares acquired						4,486	4,486
Treasury stock acquired, average cost per share (USD per share)						$ 14.28	$ 14.28
Dividend payable per share (in dollars per share)			$ 0.125		$ 0.125
Dividends paid (USD per Share)		$ 0.125		$ 0.125
June 2004 Plan
Class of Stock [Line Items]
Stock repurchased during period, shares										131,756
Stock repurchase program, authorized amount										$ 1,300,000.0
August 2006 Plan
Class of Stock [Line Items]
Stock repurchase program, authorized amount								$ 500,000.0	$ 20,000,000
Subsequent Event | June 2004 Plan
Class of Stock [Line Items]
Stock repurchased during period, shares	19,084
Stock repurchased during the period (in shares)	112,672
Subsequent Event | August 2006 Plan
Class of Stock [Line Items]
Stock repurchase program, remaining authorized repurchase amount	$ 19,700,000
Stock repurchased during period, value	$ 300,000