Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt and Lines of Credit - Narrative (Details)

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Long-Term Debt and Lines of Credit - Narrative (Details)
1 Months Ended 3 Months Ended
Sep. 04, 2014
USD ($)
a
loan
Nov. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
a
loan
Sep. 30, 2019
USD ($)
Mar. 31, 2018
USD ($)
Feb. 15, 2015
USD ($)
Sep. 30, 2014
USD ($)
Debt Instrument [Line Items]              
Debt issuance cost, net     $ 1,286,000 $ 1,369,000      
Minimum debt service coverage ratio     1.10        
Tangible net worth     $ 160,000,000        
Percentage of consolidated net income     10.00%        
Annual increase of tangible net worth     $ 167,364,000        
Minimum current ratio     1.50        
Debt to total assets ratio     0.625        
Limit on capital expenditures     $ 30,000,000        
Interest rate term loans     $ 156,317,000 163,449,000      
Silver Nip Citrus              
Debt Instrument [Line Items]              
Area of property that served as collateral (in acres) | a 1,500            
Number of fixed rate term loans | loan 2            
Covenant ratio     1.00        
Silver Nip Citrus | Citrus Grove              
Debt Instrument [Line Items]              
Area of land owned (in acres) | a 1,500            
Met Fixed-Rate Term Loans              
Debt Instrument [Line Items]              
Quarterly principal payments   $ 220,000 $ 2,281,250        
Fixed interest rate     4.15%        
Prepayment amount of the fixed term loan (up to)     $ 8,750,000        
Availability under line of credit     5,625,000        
Debt issuance cost, net     699,000 724,000      
Interest rate term loans   $ 4,455,000 88,125,000 $ 89,688,000      
Met Fixed-Rate Term Loans | Silver Nip Citrus              
Debt Instrument [Line Items]              
Quarterly principal payments     $ 290,000        
Fixed interest rate     5.35%        
Prepayment amount of the fixed term loan (up to)     $ 5,000,000        
Area of property that served as collateral (in acres) | a     5,700        
Number of fixed rate term loans | loan     2        
Interest rate term loans     $ 27,550,000        
Amount of prepayment         $ 4,453,000 $ 750,000  
Amount of prepayment in excess of total without penalty     203,000        
Premium payment of penalty     $ 22,000        
Met Fixed-Rate Term Loans | Silver Nip Citrus | Prudential              
Debt Instrument [Line Items]              
Quarterly principal payments $ 55,000            
Interest rate term loans $ 5,500,000            
Met Variable-Rate Term Loans              
Debt Instrument [Line Items]              
LIBOR spread subject to adjustment period     2 years        
Variable interest rate     3.58% 3.91%      
Debt issuance cost, net     $ 321,000 $ 334,000      
Interest rate term loans     $ 43,125,000 43,844,000      
Met Variable-Rate Term Loans | LIBOR              
Debt Instrument [Line Items]              
LIBOR spread (as a percent)     1.65%        
Fixed Rate Term Loan1 | Silver Nip Citrus              
Debt Instrument [Line Items]              
Fixed interest rate 3.85%            
Fixed Rate Term Loan 2 | Silver Nip Citrus              
Debt Instrument [Line Items]              
Fixed interest rate 3.45%            
Silver Nip Citrus Debt | Silver Nip Citrus              
Debt Instrument [Line Items]              
Debt issuance cost, net     $ 227,000 271,000      
Citrus Groves              
Debt Instrument [Line Items]              
Area of land (in acres) | a     38,200        
Farm and Ranch Land              
Debt Instrument [Line Items]              
Area of land (in acres) | a     5,800        
Revolving Credit Facility              
Debt Instrument [Line Items]              
Debt issuance cost, gross             $ 2,834,000
Debt issuance cost, net     $ 1,173,000 $ 1,066,000     $ 339,000
Revolving Credit Facility | Met Fixed-Rate Term Loans              
Debt Instrument [Line Items]              
Revolving line of credit     125,000,000        
Revolving Credit Facility | Met Variable-Rate Term Loans              
Debt Instrument [Line Items]              
Revolving line of credit     57,500,000        
RLOC              
Debt Instrument [Line Items]              
Revolving line of credit     25,000,000        
Availability under line of credit     $ 25,000,000        
Annual commitment fee (as a percent)     0.25%        
RLOC | LIBOR              
Debt Instrument [Line Items]              
LIBOR spread (as a percent)     1.65%        
RLOC | Met Variable-Rate Term Loans              
Debt Instrument [Line Items]              
LIBOR spread subject to adjustment period     2 years        
Variable interest rate     3.91% 3.91%      
WCLC              
Debt Instrument [Line Items]              
Revolving line of credit     $ 70,000,000        
Variable interest rate     3.46% 3.85%      
Availability under line of credit     $ 69,600,000 $ 69,540,000      
Annual commitment fee (as a percent)     0.20%        
WCLC | Letter of Credit              
Debt Instrument [Line Items]              
Revolving line of credit     $ 2,000,000 20,000,000      
Outstanding balance     0        
Outstanding letters of credit     $ 399,000        
WCLC | Minimum              
Debt Instrument [Line Items]              
Annual commitment fee (as a percent)     0.20%        
WCLC | Maximum              
Debt Instrument [Line Items]              
Annual commitment fee (as a percent)     0.30%        
WCLC | LIBOR              
Debt Instrument [Line Items]              
LIBOR spread (as a percent)     1.75%        
WCLC | LIBOR | Minimum              
Debt Instrument [Line Items]              
LIBOR spread (as a percent)     1.75%        
WCLC | LIBOR | Maximum              
Debt Instrument [Line Items]              
LIBOR spread (as a percent)     2.50%        
Letter of Credit              
Debt Instrument [Line Items]              
Debt issuance cost, gross     $ 23,000 133,000      
Metlife Term Loan | Citree              
Debt Instrument [Line Items]              
Revolving line of credit     $ 5,000,000        
Fixed interest rate     5.28%        
Outstanding balance     $ 4,700,000 4,750,000      
Debt issuance cost, net     $ 39,000 $ 40,000      
Area of property that served as collateral (in acres) | a     1,200