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Debt (Tables)
 12 Months Ended
Dec. 31, 2019
Debt Disclosure [Abstract]  
Schedule of Outstanding Balances and Maturity Dates for Short Term and Long Term Debt
The outstanding balances and maturity dates for short-term (including the current portion of long-term debt) and long-term debt as of December 31, 2019 and December 31, 2018 are as follows (in thousands):
 December 31, 2019December 31, 2018
 Short-termLong-termShort-termLong-term
BONDS AND NOTES PAYABLE -    
4.38% Series A 2016, maturing June 2028$—  $28,750  $—  $28,750  
4.58% Series B 2016, maturing June 2036—  86,250  —  86,250  
1.20% WIFA Loan, maturing October 2032—  —  3  39  
4.65% Harquahala Loan, maturing January 20216  3  5  9  
4.60% WIFA Loan, maturing March 20371  15  1  12  
 7  115,018  9  115,060  
OTHER
Capital lease obligations110  251  38  96  
Debt issuance costs—  (605) —  (649) 
Total debt$117  $114,664  $47  $114,507  
Schedule of Aggregate Annual Maturities of Debt And Minimum Lease Payments Under Capital Lease Obligations
At December 31, 2019, the remaining aggregate annual maturities of debt and minimum lease payments under capital lease obligations for the years ended December 31 are as follows (in thousands):
 DebtCapital Lease
Obligations
2020$7  $110  
20211,920  115  
20223,834  88  
20233,834  48  
20243,834  —  
Thereafter101,596  —  
Subtotal115,025  361  
Less: amount representing interest—  (25) 
Total$115,025  $336