Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net income (loss)	$ (1,234)	$ (1,635)	$ (964)	$ (1,418)	$ (2,869)	$ (2,382)
Changes in operating assets and liabilities:
Federal income tax receivable - refund received					0	5,371
Other assets					65	33
Accounts payable and accrued liabilities					72	(27)
Net cash provided (used) by operating activities					(2,732)	2,995
Net change in cash and cash equivalents					(2,732)	2,995
Cash and cash equivalents at beginning of period		$ 7,925		$ 2,851	7,925	2,851
Cash and cash equivalents at end of period	$ 5,193		$ 5,846		5,193	5,846
Supplemental cash flow disclosure:
Income taxes refunded (paid)					0	5,371
Supplemental cash flow disclosure of non-cash operating activities:
Deferred tax asset reclassified to federal income tax receivable					$ 0	$ 5,370