SHAREHOLDERS' EQUITY (Details) - USD ($)					12 Months Ended		33 Months Ended	126 Months Ended
	Dec. 21, 2016	Nov. 10, 2016	Sep. 21, 2016	Aug. 11, 2016	Dec. 31, 2016	Dec. 31, 2015	Mar. 14, 2017	Mar. 14, 2017	Aug. 31, 2016	Aug. 28, 2006	Jun. 30, 2004	May 19, 1998
Preferred Stock [Abstract]
Common stock, shares authorized (in shares)					99,000,000.0	99,000,000						100,000,000.0
Preferred stock, shares authorized (in shares)					1,000,000	1,000,000
Preferred stock, par value (in dollars per share)					$ 0.01	$ 0.01
Preferred stock, shares issued (in shares)					0	0
Preferred stock, shares outstanding (in shares)					0	0
Equity, Class of Treasury Stock [Line Items]
Treasury stock repurchased (in shares)					15,697
Treasury stock repurchased, average cost per share (USD per share)					$ 17.28
Shares issued due to exercise of stock options (in shares)					7,001
Shares issued as compensation for the work (in shares)					12,908
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance					$ 38,564,000	$ 31,376,000
Current-period change before reclassifications					1,176,000
Amounts reclassified from accumulated other comprehensive income (loss)					(43,000)
Income tax benefit					15,000
Ending balance					38,885,000	38,564,000
Dividends declared, price per share		$ 0.125		$ 0.125
Dividends					700,000	0
Dividends Paid, price per share	$ 0.125		$ 0.125
June 2004 Plan
Equity, Class of Treasury Stock [Line Items]
Number of common shares authorized to be repurchased (in shares)											131,756
Stock repurchase program, authorized amount											$ 1,300,000.0
June 2004 Plan | Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, remaining number of shares authorized to be repurchased (in shares)							19,084	19,084
Treasury stock repurchased (in shares)							112,672
August 2006 Plan
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount										$ 20,000,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount									$ 500,000.0
August 2006 Plan | Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Remaining Authorized Repurchase Amount							$ 19,700,000.0	$ 19,700,000.0
Stock repurchased since inception								$ 300,000.0
Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance					358,000
Current-period change before reclassifications					1,176,000
Amounts reclassified from accumulated other comprehensive income (loss)					0
Income tax benefit					0
Ending balance					1,534,000	358,000
Pension Postretirement Benefit Obligation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance					328,000
Current-period change before reclassifications					0
Amounts reclassified from accumulated other comprehensive income (loss)					(43,000)
Income tax benefit					15,000
Ending balance					300,000	328,000
Accumulated other comprehensive income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance					686,000	(109,000)
Ending balance					$ 1,834,000	$ 686,000