STOCK-BASED COMPENSATION - Narrative (Details) - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense	$ 2,200,000	$ 1,900,000	$ 2,000,000
2011 Director Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of common stock purchase (in percent)	90.00%
Shares reserved for issuance (in shares)	18,578
Shares eligible for issuance (in shares)	150,000
Shares issued (in shares)	15,332	14,470	10,340
Compensation Expense	$ 38,000	$ 35,000	$ 22,000
2011 Associate Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of common stock purchase (in percent)	90.00%
Shares reserved for issuance (in shares)	593,750
Shares remain eligible for issuance	276,769
Shares issued (in shares)	27,304	19,503	28,874
Compensation Expense	$ 100,000	$ 70,000	$ 94,000
Percentage of outstanding stock purchase (in percent)	10.00%
Maximum Stock purchases under the plan	$ 25,000
Weighted average estimated fair value (in dollars per shares)	$ 3.61	$ 3.57	$ 3.28
2011 Associate Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance (in shares)	875,000
Shares eligible for issuance (in shares)	29,034
Shares remain eligible for issuance	359,761
Percentage of award in form of stock	75.00%
Percentage of award in form of cash bonus	25.00%
Shares issued (in shares)	25,625
Compensation Expense	$ 900,000	$ 1,100,000	$ 800,000
Share Based Compensation Arrangement By Share Based Payment Award Grant Date Fair Value of Shares	$ 1,000,000
Executive Long-Term Incentive Plan President[Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued (in shares)	10,460	9,810	6,540
Compensation Expense	$ 200,000	$ 200,000	$ 400,000
Executive Long TermI Incentive Plan CFO [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued (in shares)	4,812	2,406
Compensation Expense	$ 400,000	$ 200,000	100,000
Executive Long Term Incentive Plan CEO [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense	$ 600,000	$ 300,000	$ 600,000

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Represents the maximum fair value of stock purchases under the plan

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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