CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS	12 Months Ended
Jan. 31, 2016
CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS
CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS	NOTE 5 — CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS The Company considers all liquid investments with original maturities of three months or less at the time of purchase to be cash equivalents. Short-term investments as of January 31, 2017 and 2016 consisted solely of certificates of deposit purchased from the Bank of America (the “Bank”) with weighted average original maturities of 185 days and 174 days, respectively (the “CDs”). The Company has the intent and ability to hold these securities until they mature, and they are carried at cost plus accrued interest which approximates fair value. The total carrying value amounts as of January 31, 2017 and 2016 included accrued interest of $0.8 million and $0.1 million, respectively. Interest income is recorded when earned and is included in other income, net. As of January 31, 2017 and 2016, the weighted average annual interest rates on the Company’s short-term investment CDs were 1.13% and 0.63%, respectively. The Company has cash on deposit in excess of federally insured limits at the Bank, has purchased CDs and has liquid mutual fund investments at the Bank. Management does not believe that maintaining substantially all such assets with the Bank represents a material risk. The amount of cash and cash equivalents included in the consolidated balance sheet as of January 31, 2017 included $12.5 million held by the consolidated joint venture entities that are discussed in Note 4 above that will be used to cover any remaining future construction or warranty costs incurred under the corresponding EPC Contracts and the remaining earnings distributions to the joint venture partners.

NOTE 5 — CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS

The Company considers all liquid investments with original maturities of three months or less at the time of purchase to be cash equivalents. Short-term investments as of January 31, 2017 and 2016 consisted solely of certificates of deposit purchased from the Bank of America (the “Bank”) with weighted average original maturities of 185 days and 174 days, respectively (the “CDs”). The Company has the intent and ability to hold these securities until they mature, and they are carried at cost plus accrued interest which approximates fair value. The total carrying value amounts as of January 31, 2017 and 2016 included accrued interest of $0.8 million and $0.1 million, respectively. Interest income is recorded when earned and is included in other income, net. As of January 31, 2017 and 2016, the weighted average annual interest rates on the Company’s short-term investment CDs were 1.13% and 0.63%, respectively.

The Company has cash on deposit in excess of federally insured limits at the Bank, has purchased CDs and has liquid mutual fund investments at the Bank. Management does not believe that maintaining substantially all such assets with the Bank represents a material risk.

The amount of cash and cash equivalents included in the consolidated balance sheet as of January 31, 2017 included $12.5 million held by the consolidated joint venture entities that are discussed in Note 4 above that will be used to cover any remaining future construction or warranty costs incurred under the corresponding EPC Contracts and the remaining earnings distributions to the joint venture partners.