Revenue Recognition - Disaggregation of revenue (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of revenue
Leasing revenue	$ 4,907	$ 3,674	$ 9,206	$ 7,181
Total revenue	36,082	35,546	54,655	51,570
Recognized at a point in time
Disaggregation of revenue
Revenue	30,424	31,092	44,076	43,098
Recognized over time
Disaggregation of revenue
Revenue	751	780	1,373	1,291
Real estate
Disaggregation of revenue
Revenue	17,555	15,553	23,362	20,144
Hospitality
Disaggregation of revenue
Revenue	11,565	15,560	18,176	22,991
Timber
Disaggregation of revenue
Revenue	2,055	759	3,911	1,254
Operating Segments \| Residential
Disaggregation of revenue
Leasing revenue	55	11	78	22
Total revenue	14,127	14,019	17,166	17,544
Operating Segments \| Residential \| Recognized at a point in time
Disaggregation of revenue
Revenue	14,072	14,008	17,088	17,522
Operating Segments \| Residential \| Real estate
Disaggregation of revenue
Revenue	14,002	13,825	16,956	17,187
Operating Segments \| Residential \| Hospitality
Disaggregation of revenue
Revenue	70	183	132	335
Operating Segments \| Hospitality
Disaggregation of revenue
Leasing revenue	3	27	5	52
Total revenue	11,498	15,404	18,049	22,708
Operating Segments \| Hospitality \| Recognized at a point in time
Disaggregation of revenue
Revenue	10,744	14,597	16,671	21,365
Operating Segments \| Hospitality \| Recognized over time
Disaggregation of revenue
Revenue	751	780	1,373	1,291
Operating Segments \| Hospitality \| Hospitality
Disaggregation of revenue
Revenue	11,495	15,377	18,044	22,656
Operating Segments \| Commercial
Disaggregation of revenue
Leasing revenue	4,849	3,636	9,123	7,107
Total revenue	9,226	5,683	18,121	10,760
Operating Segments \| Commercial \| Recognized at a point in time
Disaggregation of revenue
Revenue	4,377	2,047	8,998	3,653
Operating Segments \| Commercial \| Real estate
Disaggregation of revenue
Revenue	2,322	1,288	5,087	2,399
Operating Segments \| Commercial \| Timber
Disaggregation of revenue
Revenue	2,055	759	3,911	1,254
Other
Disaggregation of revenue
Total revenue	1,231	440	1,319	558
Other \| Recognized at a point in time
Disaggregation of revenue
Revenue	1,231	440	1,319	558
Other \| Real estate
Disaggregation of revenue
Revenue	$ 1,231	$ 440	$ 1,319	$ 558

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- Definition

Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

+ References

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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-Publisher FASB
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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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