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EQUITY INCENTIVES - Stock Options and Stock Appreciation Rights (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Jun. 30, 2019
Jun. 30, 2016
May 31, 2010
Mar. 31, 2020
Equity incentives        
Increase in number of shares authorized 6,500,000 5,000,000 4,500,000  
Authorized shares 21,100,000 14,600,000 9,600,000  
Shares available for issuance       7,855,920
Total unrecognized compensation cost related to share-based compensation arrangements       $ 400
Expected weighted-average recognition period in years       1 year 4 months 24 days
Contractual term       5 years
Maximum        
Equity incentives        
Vesting period       3 years
Stock Options and Stock Appreciation Rights        
Equity incentives        
Contractual term       5 years
Aggregate intrinsic value of outstanding and exercisable       $ 0
Weighted average remaining contractual term of outstanding and exercisable       1 year 1 month 6 days
Number of options or SARs exercised (in shares)       0
Stock Options and Stock Appreciation Rights | Minimum        
Equity incentives        
Vesting period       0 years
Stock Options and Stock Appreciation Rights | Maximum        
Equity incentives        
Vesting period       3 years