CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 440	$ 316
Short-term investments	3,163	3,951
Investments in marketable equity securities, at fair value	1,278	949
Prepaid expenses and other	26	38
Total current assets	4,907	5,254
Mineral properties	16,646	16,646
Other assets	118	134
Total assets	21,671	22,034
Current liabilities:
Accounts payable	188	228
Operating lease liability	25	35
Total current liabilities	213	263
Long-term liabilities
Asset retirement obligation - Lik	125	125
Total long-term liabilities	125	125
Shareholders' equity:
Preferred stock, $0.01 par value, authorized 10,000,000 shares (none issued and outstanding at March 31, 2023 and December 31, 2022)	0	0
Common stock, $0.01 par value, authorized 100,000,000 shares (64,801,373 and 64,801,373 shares, respectively, issued and outstanding at March 31, 2023 and December 31, 2022)	648	648
Additional paid-in capital	74,953	74,886
Accumulated deficit	(54,268)	(53,888)
Total shareholders' equity	21,333	21,646
Total liabilities and shareholders' equity	$ 21,671	$ 22,034

No definition available.

Name:	slr_InvestmentsInMarketableEquitySecuritiesAtFairValue
Namespace Prefix:	slr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).