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BUSINESS - Narrative (Details) - IPO
$ / shares in Units, $ in Thousands
Oct. 12, 2017
USD ($)
$ / shares
shares
Common Stock  
Class of Stock [Line Items]  
Stock issued during period, shares, new issues (in shares) | shares 4,600,000
Public offering price (usd per share) | $ / shares $ 13.00
Gross proceeds on sale of stock $ 59,800
Net proceeds on sale of stock 46,900
Underwriting discounts and commissions on sale of stock 4,200
Offering costs 2,700
Series B Preferred Stock  
Class of Stock [Line Items]  
Dividend payments $ 6,000