XML 47 R37.htm IDEA: XBRL DOCUMENT v3.4.0.3
DEBT, Credit Facility (Details) - Rabobank N.A [Member] - Unsecured Credit Agreement [Member]
3 Months Ended
Apr. 30, 2016
USD ($)
Credit Facility [Abstract]  
Maximum borrowing capacity $ 20,000,000
Unused capacity commitment fee 0.25%
Effective borrowing rate 1.19%
Liquidity on a consolidated basis, Minimum $ 25,000,000
Current ratio, Minimum 1.3
Leverage ratio, Maximum 1.5
Debt service coverage ratio, Minimum 1.5
Borrowings outstanding $ 0
LIBOR [Member]  
Credit Facility [Abstract]  
Basis spread on variable rate 0.75%