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5. Commitments and Contingencies (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Operating lease expense	$ 177	$ 181
Short term lease expense	14	41
Variable lease expense	34	32
Sub lease income	0	(17)
Total lease cost	$ 225	$ 237

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Amount of lease cost recognized by lessee for lease contract.

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of operating lease expense. Excludes sublease income.

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Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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Amount of sublease income excluding finance and operating lease expense.

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Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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