XML 136 R52.htm IDEA: XBRL DOCUMENT v3.8.0.1
CREDIT FACILITY (Details) - Line of Credit - Revolving Credit Facility - USD ($)
Jul. 27, 2017
Mar. 31, 2018
Debt Instrument [Line Items]    
Maximum borrowing capacity $ 30,000,000.0  
Additional maximum borrowing capacity increase 20,000,000.0  
Contingent maximum borrowing capacity $ 50,000,000.0  
Basis spread on variable rate 1.10%  
Minimum annual interest charge $ 60,000  
Long-term line of credit   $ 6,000,000
London Interbank Offered Rate (LIBOR)    
Debt Instrument [Line Items]    
Basis spread on variable rate 1.65%